version 1.9, 2008/12/28 23:07:04 |
version 1.47, 2009/01/20 16:04:48 |
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#include <stdlib.h> |
#include <stdlib.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <string.h> |
#include <string.h> |
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#ifdef __linux__ |
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#include <time.h> |
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#endif |
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/* |
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* This has scanning/parsing routines, each of which extract a macro and |
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* its arguments and parameters, then know how to progress to the next |
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* macro. Macros are parsed according as follows: |
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* |
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* ELEMENT: TEXT | epsilon |
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* BLOCK: HEAD PUNCT BODY PUNCT BLOCK_TAIL PUNCT |
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* BLOCK_TAIL: TAIL | epsilon |
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* HEAD: ELEMENT | TEXT | BLOCK | epsilon |
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* BODY: ELEMENT | TEXT | BLOCK | epsilon |
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* TAIL: TEXT | epsilon |
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* PUNCT: TEXT (delimiters) | epsilon |
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* |
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* These are arranged into a parse tree, an example of which follows: |
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* |
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* ROOT |
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* BLOCK (.Sh) |
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* HEAD |
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* TEXT (`NAME') |
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* BODY |
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* ELEMENT (.Nm) |
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* TEXT (`mdocml') |
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* ELEMENT (.Nd) |
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* TEXT (`mdoc macro compiler') |
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* BLOCK (.Op) |
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* HEAD |
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* ELEMENT (.Fl) |
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* TEXT (`v') |
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* BLOCK (.Op) |
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* HEAD |
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* ELEMENT (.Fl) |
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* TEXT (`v') |
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* ELEMENT (.Fl) |
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* TEXT (`W') |
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* ELEMENT (.Ns) |
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* ELEMENT (.Ar) |
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* TEXT (`err...') |
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* |
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* These types are always per-line except for block bodies, which may |
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* span multiple lines. Macros are assigned a parsing routine, which |
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* corresponds to the type, in the mdoc_macros table. |
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* |
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* Note that types are general: there can be several parsing routines |
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* corresponding to a single type. The macro_text function, for |
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* example, parses an ELEMENT type (see the function definition for |
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* details) that may be interrupted by further macros; the |
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* macro_constant function, on the other hand, parses an ELEMENT type |
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* spanning a single line. |
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*/ |
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#include "private.h" |
#include "private.h" |
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#define _CC(p) ((const char **)p) |
#define REWIND_REWIND (1 << 0) |
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#define REWIND_NOHALT (1 << 1) |
static int scope_rewind_exp(struct mdoc *, int, int, int); |
#define REWIND_HALT (1 << 2) |
static int scope_rewind_imp(struct mdoc *, int, int); |
static int rewind_dohalt(int, enum mdoc_type, |
static int append_text(struct mdoc *, int, |
const struct mdoc_node *); |
int, int, char *[]); |
static int rewind_alt(int); |
static int append_scoped(struct mdoc *, int, int, int, |
static int rewind_dobreak(int, const struct mdoc_node *); |
const char *[], int, const struct mdoc_arg *); |
static int rewind_elem(struct mdoc *, int); |
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static int rewind_impblock(struct mdoc *, int, int, int); |
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static int rewind_expblock(struct mdoc *, int, int, int); |
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static int rewind_subblock(enum mdoc_type, |
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struct mdoc *, int, int, int); |
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static int rewind_last(struct mdoc *, struct mdoc_node *); |
static int append_delims(struct mdoc *, int, int *, char *); |
static int append_delims(struct mdoc *, int, int *, char *); |
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static int lookup(struct mdoc *, int, int, int, const char *); |
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static int |
static int |
append_delims(struct mdoc *mdoc, int tok, int *pos, char *buf) |
lookup(struct mdoc *mdoc, int line, int pos, int from, const char *p) |
{ |
{ |
int c, lastarg; |
int res; |
char *p; |
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if (0 == buf[*pos]) |
res = mdoc_find(mdoc, p); |
return(1); |
if (MDOC_PARSED & mdoc_macros[from].flags) |
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return(res); |
mdoc_msg(mdoc, *pos, "`%s' flushing punctuation", |
if (MDOC_MAX == res) |
mdoc_macronames[tok]); |
return(res); |
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if ( ! mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX, "macro-like parameter")) |
for (;;) { |
return(-1); |
lastarg = *pos; |
return(MDOC_MAX); |
c = mdoc_args(mdoc, tok, pos, buf, 0, &p); |
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if (ARGS_ERROR == c) |
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return(0); |
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else if (ARGS_EOLN == c) |
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break; |
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assert(mdoc_isdelim(p)); |
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mdoc_word_alloc(mdoc, lastarg, p); |
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} |
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return(1); |
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} |
} |
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static int |
static int |
scope_rewind_imp(struct mdoc *mdoc, int ppos, int tok) |
rewind_last(struct mdoc *mdoc, struct mdoc_node *to) |
{ |
{ |
struct mdoc_node *n; |
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int t; |
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n = mdoc->last ? mdoc->last->parent : NULL; |
assert(to); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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/* LINTED */ |
while (mdoc->last != to) { |
for ( ; n; n = n->parent) { |
if ( ! mdoc_valid_post(mdoc)) |
if (MDOC_BLOCK != n->type) |
return(0); |
continue; |
if ( ! mdoc_action_post(mdoc)) |
if (tok == (t = n->data.block.tok)) |
return(0); |
break; |
mdoc->last = mdoc->last->parent; |
if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags)) |
assert(mdoc->last); |
continue; |
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return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK)); |
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} |
} |
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if (n) { |
if ( ! mdoc_valid_post(mdoc)) |
mdoc->last = n; |
return(0); |
mdoc_msg(mdoc, ppos, "scope: rewound implicit `%s'", |
return(mdoc_action_post(mdoc)); |
mdoc_macronames[tok]); |
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return(1); |
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} |
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mdoc_msg(mdoc, ppos, "scope: new implicit `%s'", |
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mdoc_macronames[tok]); |
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return(1); |
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} |
} |
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static int |
static int |
scope_rewind_exp(struct mdoc *mdoc, int ppos, int tok, int dst) |
rewind_alt(int tok) |
{ |
{ |
struct mdoc_node *n; |
switch (tok) { |
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case (MDOC_Ac): |
assert(mdoc->last); |
return(MDOC_Ao); |
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case (MDOC_Bc): |
/* LINTED */ |
return(MDOC_Bo); |
for (n = mdoc->last->parent; n; n = n->parent) { |
case (MDOC_Dc): |
if (MDOC_BLOCK != n->type) |
return(MDOC_Do); |
continue; |
case (MDOC_Ec): |
if (dst == n->data.block.tok) |
return(MDOC_Eo); |
break; |
case (MDOC_Ed): |
return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK)); |
return(MDOC_Bd); |
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case (MDOC_Ef): |
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return(MDOC_Bf); |
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case (MDOC_Ek): |
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return(MDOC_Bk); |
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case (MDOC_El): |
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return(MDOC_Bl); |
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case (MDOC_Fc): |
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return(MDOC_Fo); |
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case (MDOC_Oc): |
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return(MDOC_Oo); |
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case (MDOC_Pc): |
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return(MDOC_Po); |
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case (MDOC_Qc): |
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return(MDOC_Qo); |
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case (MDOC_Re): |
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return(MDOC_Rs); |
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case (MDOC_Sc): |
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return(MDOC_So); |
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case (MDOC_Xc): |
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return(MDOC_Xo); |
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default: |
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break; |
} |
} |
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abort(); |
if (NULL == (mdoc->last = n)) |
/* NOTREACHED */ |
return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_NOCTX)); |
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mdoc_msg(mdoc, ppos, "scope: rewound explicit `%s' to `%s'", |
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mdoc_macronames[tok], mdoc_macronames[dst]); |
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return(1); |
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} |
} |
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static int |
static int |
append_scoped(struct mdoc *mdoc, int tok, int pos, |
rewind_dohalt(int tok, enum mdoc_type type, const struct mdoc_node *p) |
int sz, const char *args[], |
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int argc, const struct mdoc_arg *argv) |
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{ |
{ |
enum mdoc_sec sec; |
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struct mdoc_node *node; |
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switch (tok) { |
if (MDOC_ROOT == p->type) |
/* ======= ADD MORE MACRO CHECKS BELOW. ======= */ |
return(REWIND_HALT); |
case (MDOC_Sh): |
if (MDOC_VALID & p->flags) |
if (0 == sz) |
return(REWIND_NOHALT); |
return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1)); |
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sec = mdoc_atosec((size_t)sz, _CC(args)); |
switch (tok) { |
if (SEC_CUSTOM != sec && sec < mdoc->sec_lastn) |
/* One-liner implicit-scope. */ |
if ( ! mdoc_warn(mdoc, tok, pos, WARN_SEC_OO)) |
case (MDOC_Aq): |
return(0); |
/* FALLTHROUGH */ |
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case (MDOC_Bq): |
if (SEC_BODY == mdoc->sec_last && SEC_NAME != sec) |
/* FALLTHROUGH */ |
return(mdoc_err(mdoc, tok, pos, ERR_SEC_NAME)); |
case (MDOC_D1): |
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/* FALLTHROUGH */ |
if (SEC_CUSTOM != sec) |
case (MDOC_Dl): |
mdoc->sec_lastn = sec; |
/* FALLTHROUGH */ |
mdoc->sec_last = sec; |
case (MDOC_Dq): |
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/* FALLTHROUGH */ |
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case (MDOC_Op): |
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/* FALLTHROUGH */ |
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case (MDOC_Pq): |
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/* FALLTHROUGH */ |
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case (MDOC_Ql): |
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/* FALLTHROUGH */ |
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case (MDOC_Qq): |
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/* FALLTHROUGH */ |
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case (MDOC_Sq): |
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assert(MDOC_HEAD != type); |
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assert(MDOC_TAIL != type); |
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if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
break; |
break; |
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/* Multi-line implicit-scope. */ |
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case (MDOC_It): |
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assert(MDOC_TAIL != type); |
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if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
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if (MDOC_BODY == p->type && MDOC_Bl == p->tok) |
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return(REWIND_HALT); |
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break; |
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case (MDOC_Sh): |
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if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
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break; |
case (MDOC_Ss): |
case (MDOC_Ss): |
if (0 == sz) |
assert(MDOC_TAIL != type); |
return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1)); |
if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
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if (MDOC_BODY == p->type && MDOC_Sh == p->tok) |
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return(REWIND_HALT); |
break; |
break; |
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/* Multi-line explicit scope start. */ |
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case (MDOC_Ao): |
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/* FALLTHROUGH */ |
case (MDOC_Bd): |
case (MDOC_Bd): |
assert(mdoc->last); |
/* FALLTHROUGH */ |
node = mdoc->last->parent; |
case (MDOC_Bf): |
/* LINTED */ |
/* FALLTHROUGH */ |
for ( ; node; node = node->parent) { |
case (MDOC_Bk): |
if (node->type != MDOC_BLOCK) |
/* FALLTHROUGH */ |
continue; |
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if (node->data.block.tok != MDOC_Bd) |
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continue; |
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return(mdoc_err(mdoc, tok, pos, ERR_SCOPE_NONEST)); |
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} |
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break; |
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case (MDOC_Bl): |
case (MDOC_Bl): |
break; |
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/* ======= ADD MORE MACRO CHECKS ABOVE. ======= */ |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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mdoc_block_alloc(mdoc, pos, tok, (size_t)argc, argv); |
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mdoc_head_alloc(mdoc, pos, tok, (size_t)sz, _CC(args)); |
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mdoc_body_alloc(mdoc, pos, tok); |
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return(1); |
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} |
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static int |
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append_text(struct mdoc *mdoc, int tok, |
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int pos, int sz, char *args[]) |
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{ |
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assert(sz >= 0); |
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args[sz] = NULL; |
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switch (tok) { |
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/* ======= ADD MORE MACRO CHECKS BELOW. ======= */ |
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case (MDOC_Pp): |
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if (0 == sz) |
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break; |
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if ( ! mdoc_warn(mdoc, tok, pos, WARN_ARGS_EQ0)) |
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return(0); |
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break; |
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case (MDOC_Ft): |
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/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Li): |
case (MDOC_Bo): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Ms): |
case (MDOC_Do): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Pa): |
case (MDOC_Eo): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Tn): |
case (MDOC_Fo): |
if (0 < sz) |
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break; |
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if ( ! mdoc_warn(mdoc, tok, pos, WARN_ARGS_GE1)) |
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return(0); |
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break; |
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case (MDOC_Ar): |
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/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Cm): |
case (MDOC_Oo): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Fl): |
case (MDOC_Po): |
/* These can have no arguments. */ |
/* FALLTHROUGH */ |
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case (MDOC_Qo): |
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/* FALLTHROUGH */ |
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case (MDOC_Rs): |
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/* FALLTHROUGH */ |
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case (MDOC_So): |
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/* FALLTHROUGH */ |
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case (MDOC_Xo): |
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if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
break; |
break; |
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case (MDOC_Ad): |
/* Multi-line explicit scope close. */ |
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case (MDOC_Ac): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Em): |
case (MDOC_Bc): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Er): |
case (MDOC_Dc): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Ev): |
case (MDOC_Ec): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Fa): |
case (MDOC_Ed): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Dv): |
case (MDOC_Ek): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Ic): |
case (MDOC_El): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Va): |
case (MDOC_Fc): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Vt): |
case (MDOC_Ef): |
if (0 < sz) |
/* FALLTHROUGH */ |
break; |
case (MDOC_Oc): |
return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1)); |
/* FALLTHROUGH */ |
/* ======= ADD MORE MACRO CHECKS ABOVE. ======= */ |
case (MDOC_Pc): |
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/* FALLTHROUGH */ |
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case (MDOC_Qc): |
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/* FALLTHROUGH */ |
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case (MDOC_Re): |
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/* FALLTHROUGH */ |
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case (MDOC_Sc): |
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/* FALLTHROUGH */ |
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case (MDOC_Xc): |
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if (type == p->type && rewind_alt(tok) == p->tok) |
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return(REWIND_REWIND); |
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break; |
default: |
default: |
abort(); |
abort(); |
/* NOTREACHED */ |
/* NOTREACHED */ |
} |
} |
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mdoc_elem_alloc(mdoc, pos, tok, 0, NULL, (size_t)sz, _CC(args)); |
return(REWIND_NOHALT); |
return(1); |
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} |
} |
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int |
static int |
macro_text(MACRO_PROT_ARGS) |
rewind_dobreak(int tok, const struct mdoc_node *p) |
{ |
{ |
int lastarg, lastpunct, c, j; |
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char *args[MDOC_LINEARG_MAX], *p; |
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if (SEC_PROLOGUE == mdoc->sec_lastn) |
assert(MDOC_ROOT != p->type); |
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); |
if (MDOC_ELEM == p->type) |
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return(1); |
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if (MDOC_TEXT == p->type) |
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return(1); |
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if (MDOC_VALID & p->flags) |
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return(1); |
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/* Token pre-processing. */ |
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switch (tok) { |
switch (tok) { |
case (MDOC_Pp): |
/* Implicit rules. */ |
/* `.Pp' ignored when following `.Sh' or `.Ss'. */ |
case (MDOC_It): |
assert(mdoc->last); |
return(MDOC_It == p->tok); |
if (MDOC_BODY != mdoc->last->type) |
case (MDOC_Ss): |
break; |
return(MDOC_Ss == p->tok); |
switch (mdoc->last->data.body.tok) { |
case (MDOC_Sh): |
case (MDOC_Ss): |
if (MDOC_Ss == p->tok) |
/* FALLTHROUGH */ |
|
case (MDOC_Sh): |
|
if ( ! mdoc_warn(mdoc, tok, ppos, WARN_IGN_AFTER_BLK)) |
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return(0); |
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return(1); |
return(1); |
default: |
return(MDOC_Sh == p->tok); |
break; |
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} |
/* Extra scope rules. */ |
|
case (MDOC_El): |
|
if (MDOC_It == p->tok) |
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return(1); |
break; |
break; |
default: |
default: |
break; |
break; |
} |
} |
|
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/* Process line parameters. */ |
if (MDOC_EXPLICIT & mdoc_macros[tok].flags) |
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return(p->tok == rewind_alt(tok)); |
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else if (MDOC_BLOCK == p->type) |
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return(1); |
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j = 0; |
return(tok == p->tok); |
lastarg = ppos; |
} |
lastpunct = 0; |
|
|
|
again: |
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if (j == MDOC_LINEARG_MAX) |
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return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
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|
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/* |
static int |
* Parse out the next argument, unquoted and unescaped. If |
rewind_elem(struct mdoc *mdoc, int tok) |
* we're a word (which may be punctuation followed eventually by |
{ |
* a real word), then fall into checking for callables. If |
struct mdoc_node *n; |
* only punctuation remains and we're the first, then flush |
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* arguments, punctuation and exit; else, return to the caller. |
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*/ |
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|
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lastarg = *pos; |
n = mdoc->last; |
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if (MDOC_ELEM != n->type) |
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n = n->parent; |
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assert(MDOC_ELEM == n->type); |
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assert(tok == n->tok); |
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switch (mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &args[j])) { |
return(rewind_last(mdoc, n)); |
case (ARGS_ERROR): |
} |
return(0); |
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case (ARGS_WORD): |
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break; |
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case (ARGS_PUNCT): |
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if ( ! lastpunct && ! append_text(mdoc, tok, ppos, j, args)) |
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return(0); |
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if (ppos > 1) |
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return(1); |
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return(append_delims(mdoc, tok, pos, buf)); |
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case (ARGS_EOLN): |
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if (lastpunct) |
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return(1); |
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return(append_text(mdoc, tok, ppos, j, args)); |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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|
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/* |
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* Command found. First flush out arguments, then call the |
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* command. If we're the line macro when it exits, flush |
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* terminal punctuation. |
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*/ |
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|
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if (MDOC_MAX != (c = mdoc_find(mdoc, args[j]))) { |
static int |
if ( ! lastpunct && ! append_text(mdoc, tok, ppos, j, args)) |
rewind_subblock(enum mdoc_type type, struct mdoc *mdoc, |
return(0); |
int tok, int line, int ppos) |
if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) |
{ |
return(0); |
struct mdoc_node *n; |
if (ppos > 1) |
int c; |
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|
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/* LINTED */ |
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for (n = mdoc->last; n; n = n->parent) { |
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c = rewind_dohalt(tok, type, n); |
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if (REWIND_HALT == c) |
return(1); |
return(1); |
return(append_delims(mdoc, tok, pos, buf)); |
if (REWIND_REWIND == c) |
|
break; |
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else if (rewind_dobreak(tok, n)) |
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continue; |
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return(mdoc_perr(mdoc, line, ppos, "scope breaks prior %s", mdoc_node2a(n))); |
} |
} |
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/* Word/non-term-punctuation found. */ |
assert(n); |
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return(rewind_last(mdoc, n)); |
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} |
|
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if ( ! mdoc_isdelim(args[j])) { |
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/* Words are appended to the array of arguments. */ |
static int |
j++; |
rewind_expblock(struct mdoc *mdoc, int tok, int line, int ppos) |
lastpunct = 0; |
{ |
goto again; |
struct mdoc_node *n; |
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int c; |
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|
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/* LINTED */ |
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for (n = mdoc->last; n; n = n->parent) { |
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c = rewind_dohalt(tok, MDOC_BLOCK, n); |
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if (REWIND_HALT == c) |
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return(mdoc_perr(mdoc, line, ppos, "closing macro has no context")); |
|
if (REWIND_REWIND == c) |
|
break; |
|
else if (rewind_dobreak(tok, n)) |
|
continue; |
|
return(mdoc_perr(mdoc, line, ppos, "scope breaks prior %s", mdoc_node2a(n))); |
} |
} |
|
|
/* |
assert(n); |
* For punctuation, flush all collected words, then flush |
return(rewind_last(mdoc, n)); |
* punctuation, then start collecting again. Of course, this |
} |
* is non-terminal punctuation. |
|
*/ |
|
|
|
p = args[j]; |
|
if ( ! lastpunct && ! append_text(mdoc, tok, ppos, j, args)) |
|
return(0); |
|
|
|
mdoc_word_alloc(mdoc, lastarg, p); |
static int |
j = 0; |
rewind_impblock(struct mdoc *mdoc, int tok, int line, int ppos) |
lastpunct = 1; |
{ |
|
struct mdoc_node *n; |
|
int c; |
|
|
goto again; |
/* LINTED */ |
/* NOTREACHED */ |
for (n = mdoc->last; n; n = n->parent) { |
|
c = rewind_dohalt(tok, MDOC_BLOCK, n); |
|
if (REWIND_HALT == c) |
|
return(1); |
|
else if (REWIND_REWIND == c) |
|
break; |
|
else if (rewind_dobreak(tok, n)) |
|
continue; |
|
return(mdoc_perr(mdoc, line, ppos, "scope breaks prior %s", mdoc_node2a(n))); |
|
} |
|
|
|
assert(n); |
|
return(rewind_last(mdoc, n)); |
} |
} |
|
|
|
|
int |
static int |
macro_prologue_dtitle(MACRO_PROT_ARGS) |
append_delims(struct mdoc *mdoc, int line, int *pos, char *buf) |
{ |
{ |
int lastarg, j; |
int c, lastarg; |
char *args[MDOC_LINEARG_MAX]; |
char *p; |
|
|
if (SEC_PROLOGUE != mdoc->sec_lastn) |
if (0 == buf[*pos]) |
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_NPROLOGUE)); |
return(1); |
if (0 == mdoc->meta.date) |
|
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_OO)); |
|
if (mdoc->meta.title[0]) |
|
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_REP)); |
|
|
|
j = -1; |
for (;;) { |
lastarg = ppos; |
lastarg = *pos; |
|
c = mdoc_args(mdoc, line, pos, buf, 0, &p); |
|
if (ARGS_ERROR == c) |
|
return(0); |
|
else if (ARGS_EOLN == c) |
|
break; |
|
assert(mdoc_isdelim(p)); |
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} |
|
|
again: |
return(1); |
if (j == MDOC_LINEARG_MAX) |
} |
return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
|
|
|
lastarg = *pos; |
|
|
|
switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[++j])) { |
/* |
case (ARGS_EOLN): |
* Close out an explicit scope. This optionally parses a TAIL type with |
if (mdoc->meta.title) |
* a set number of TEXT children. |
return(1); |
*/ |
if ( ! mdoc_warn(mdoc, tok, ppos, WARN_ARGS_GE1)) |
int |
return(0); |
macro_scoped_close(MACRO_PROT_ARGS) |
(void)xstrlcpy(mdoc->meta.title, |
{ |
"UNTITLED", META_TITLE_SZ); |
int tt, j, c, lastarg, maxargs, flushed; |
return(1); |
char *p; |
case (ARGS_ERROR): |
|
return(0); |
switch (tok) { |
|
case (MDOC_Ec): |
|
maxargs = 1; |
|
break; |
default: |
default: |
|
maxargs = 0; |
break; |
break; |
} |
} |
|
|
if (MDOC_MAX != mdoc_find(mdoc, args[j]) && ! mdoc_warn |
tt = rewind_alt(tok); |
(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE)) |
|
|
mdoc_msg(mdoc, "parse: %s closing %s", |
|
mdoc_macronames[tok], mdoc_macronames[tt]); |
|
|
|
if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) { |
|
if (0 == buf[*pos]) { |
|
if ( ! rewind_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
|
return(0); |
|
return(rewind_expblock(mdoc, tok, line, ppos)); |
|
} |
|
return(mdoc_perr(mdoc, line, ppos, "macro expects no parameters")); |
|
} |
|
|
|
if ( ! rewind_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
return(0); |
return(0); |
|
|
if (0 == j) { |
lastarg = ppos; |
if (xstrlcpy(mdoc->meta.title, args[0], META_TITLE_SZ)) |
flushed = 0; |
goto again; |
|
return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); |
|
|
|
} else if (1 == j) { |
if (maxargs > 0) { |
mdoc->meta.msec = mdoc_atomsec(args[1]); |
if ( ! mdoc_tail_alloc(mdoc, line, ppos, tt)) |
if (MSEC_DEFAULT != mdoc->meta.msec) |
return(0); |
goto again; |
mdoc->next = MDOC_NEXT_CHILD; |
return(mdoc_err(mdoc, tok, -1, ERR_SYNTAX_ARGFORM)); |
} |
|
|
} else if (2 == j) { |
for (j = 0; /* No sentinel. */; j++) { |
mdoc->meta.vol = mdoc_atovol(args[2]); |
lastarg = *pos; |
if (VOL_DEFAULT != mdoc->meta.vol) |
|
goto again; |
if (j == maxargs && ! flushed) { |
mdoc->meta.arch = mdoc_atoarch(args[2]); |
if ( ! rewind_expblock(mdoc, tok, line, ppos)) |
if (ARCH_DEFAULT != mdoc->meta.arch) |
return(0); |
goto again; |
flushed = 1; |
return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); |
} |
|
|
|
c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
|
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_PUNCT == c) |
|
break; |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
|
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
|
return(0); |
|
else if (MDOC_MAX != c) { |
|
if ( ! flushed) { |
|
if ( ! rewind_expblock(mdoc, tok, line, ppos)) |
|
return(0); |
|
flushed = 1; |
|
} |
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
|
break; |
|
} |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
} |
} |
|
|
return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
if ( ! flushed && ! rewind_expblock(mdoc, tok, line, ppos)) |
|
return(0); |
|
|
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, line, pos, buf)); |
} |
} |
|
|
|
|
|
/* |
|
* A general text macro. This is a complex case because of punctuation. |
|
* If a text macro is followed by words, then punctuation, the macro is |
|
* "stopped" and "reopened" following the punctuation. Thus, the |
|
* following arises: |
|
* |
|
* .Fl a ; b |
|
* |
|
* ELEMENT (.Fl) |
|
* TEXT (`a') |
|
* TEXT (`;') |
|
* ELEMENT (.Fl) |
|
* TEXT (`b') |
|
* |
|
* This must handle the following situations: |
|
* |
|
* .Fl Ar b ; ; |
|
* |
|
* ELEMENT (.Fl) |
|
* ELEMENT (.Ar) |
|
* TEXT (`b') |
|
* TEXT (`;') |
|
* TEXT (`;') |
|
*/ |
int |
int |
macro_prologue_os(MACRO_PROT_ARGS) |
macro_text(MACRO_PROT_ARGS) |
{ |
{ |
int lastarg, j; |
int la, lastpunct, c, w, fl, argc; |
char *args[MDOC_LINEARG_MAX]; |
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
|
char *p; |
|
|
if (SEC_PROLOGUE != mdoc->sec_lastn) |
la = ppos; |
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_NPROLOGUE)); |
lastpunct = 0; |
if (0 == mdoc->meta.title[0]) |
|
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_OO)); |
|
if (mdoc->meta.os[0]) |
|
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_REP)); |
|
|
|
j = -1; |
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
lastarg = ppos; |
la = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
|
if (ARGV_EOLN == c) |
|
break; |
|
if (ARGV_WORD == c) { |
|
*pos = la; |
|
break; |
|
} else if (ARGV_ARG == c) |
|
continue; |
|
|
again: |
mdoc_argv_free(argc, argv); |
if (j == MDOC_LINEARG_MAX) |
return(0); |
return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
} |
|
|
lastarg = *pos; |
if (MDOC_LINEARG_MAX == argc) { |
|
mdoc_argv_free(argc - 1, argv); |
|
return(mdoc_perr(mdoc, line, ppos, "parameter hard-limit exceeded")); |
|
} |
|
|
switch (mdoc_args(mdoc, tok, pos, buf, |
c = mdoc_elem_alloc(mdoc, line, ppos, tok, argc, argv); |
ARGS_QUOTED, &args[++j])) { |
|
case (ARGS_EOLN): |
if (0 == c) { |
mdoc->sec_lastn = mdoc->sec_last = SEC_BODY; |
mdoc_argv_free(argc, argv); |
return(1); |
|
case (ARGS_ERROR): |
|
return(0); |
return(0); |
default: |
|
break; |
|
} |
} |
|
|
if ( ! xstrlcat(mdoc->meta.os, args[j], sizeof(mdoc->meta.os))) |
|
return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); |
|
if ( ! xstrlcat(mdoc->meta.os, " ", sizeof(mdoc->meta.os))) |
|
return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); |
|
|
|
goto again; |
mdoc->next = MDOC_NEXT_CHILD; |
/* NOTREACHED */ |
|
} |
|
|
|
|
fl = ARGS_DELIM; |
|
if (MDOC_QUOTABLE & mdoc_macros[tok].flags) |
|
fl |= ARGS_QUOTED; |
|
|
int |
lastpunct = 0; |
macro_prologue_ddate(MACRO_PROT_ARGS) |
for (;;) { |
{ |
la = *pos; |
int lastarg, j; |
w = mdoc_args(mdoc, line, pos, buf, fl, &p); |
char *args[MDOC_LINEARG_MAX], date[64]; |
if (ARGS_ERROR == w) { |
|
mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
|
if (SEC_PROLOGUE != mdoc->sec_lastn) |
if (ARGS_EOLN == w) |
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_NPROLOGUE)); |
break; |
if (mdoc->meta.title[0]) |
if (ARGS_PUNCT == w) |
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_OO)); |
break; |
if (mdoc->meta.date) |
|
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE_REP)); |
|
|
|
j = -1; |
c = ARGS_QWORD == w ? MDOC_MAX : |
date[0] = 0; |
lookup(mdoc, line, la, tok, p); |
lastarg = ppos; |
|
|
|
again: |
if (MDOC_MAX != c && -1 != c) { |
if (j == MDOC_LINEARG_MAX) |
if (0 == lastpunct && ! rewind_elem(mdoc, tok)) { |
return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
mdoc_argv_free(argc, argv); |
|
c = mdoc_macro(mdoc, c, line, la, pos, buf); |
|
if (0 == c) |
|
return(0); |
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, line, pos, buf)); |
|
} else if (-1 == c) { |
|
mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
|
lastarg = *pos; |
if (ARGS_QWORD != w && mdoc_isdelim(p)) { |
switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[++j])) { |
if (0 == lastpunct && ! rewind_elem(mdoc, tok)) { |
case (ARGS_EOLN): |
mdoc_argv_free(argc, argv); |
if (mdoc->meta.date) |
return(0); |
return(1); |
} |
mdoc->meta.date = mdoc_atotime(date); |
lastpunct = 1; |
if (mdoc->meta.date) |
} else if (lastpunct) { |
return(1); |
c = mdoc_elem_alloc(mdoc, line, |
return(mdoc_err(mdoc, tok, ppos, ERR_SYNTAX_ARGFORM)); |
ppos, tok, argc, argv); |
case (ARGS_ERROR): |
if (0 == c) { |
return(0); |
mdoc_argv_free(argc, argv); |
default: |
return(0); |
break; |
} |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
lastpunct = 0; |
|
} |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, la, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
} |
} |
|
|
if (MDOC_MAX != mdoc_find(mdoc, args[j]) && ! mdoc_warn |
|
(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE)) |
|
return(0); |
|
|
|
if (0 == j) { |
|
if (xstrcmp("$Mdocdate$", args[j])) { |
|
mdoc->meta.date = time(NULL); |
|
goto again; |
|
} else if (xstrcmp("$Mdocdate:", args[j])) |
|
goto again; |
|
} else if (4 == j) |
|
if ( ! xstrcmp("$", args[j])) |
|
goto again; |
|
|
|
if ( ! xstrlcat(date, args[j], sizeof(date))) |
mdoc_argv_free(argc, argv); |
return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); |
|
if ( ! xstrlcat(date, " ", sizeof(date))) |
|
return(mdoc_err(mdoc, tok, lastarg, ERR_SYNTAX_ARGFORM)); |
|
|
|
goto again; |
if (0 == lastpunct && ! rewind_elem(mdoc, tok)) |
/* NOTREACHED */ |
return(0); |
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, line, pos, buf)); |
} |
} |
|
|
|
|
|
/* |
|
* Handle explicit-scope (having a different closure token) and implicit |
|
* scope (closing out prior scopes when re-invoked) macros. These |
|
* constitute the BLOCK type and usually span multiple lines. These |
|
* always have HEAD and sometimes have BODY types. In the multi-line |
|
* case: |
|
* |
|
* .Bd -ragged |
|
* Text. |
|
* .Fl macro |
|
* Another. |
|
* .Ed |
|
* |
|
* BLOCK (.Bd) |
|
* HEAD |
|
* BODY |
|
* TEXT (`Text.') |
|
* ELEMENT (.Fl) |
|
* TEXT (`macro') |
|
* TEXT (`Another.') |
|
* |
|
* Note that the `.It' macro, possibly the most difficult (as it has |
|
* embedded scope, etc.) is handled by this routine. |
|
*/ |
int |
int |
macro_scoped_explicit(MACRO_PROT_ARGS) |
macro_scoped(MACRO_PROT_ARGS) |
{ |
{ |
int c, lastarg, j; |
int c, lastarg, argc, fl; |
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
struct mdoc_node *n; |
char *p; |
|
|
if (SEC_PROLOGUE == mdoc->sec_lastn) |
assert ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)); |
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); |
|
|
|
/* |
/* First rewind extant implicit scope. */ |
* First close out the explicit scope. The `end' tags (such as |
|
* `.El' to `.Bl' don't cause anything to happen: we merely |
|
* readjust our last parse point. |
|
*/ |
|
|
|
switch (tok) { |
if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) { |
case (MDOC_El): |
if ( ! rewind_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
return(scope_rewind_exp(mdoc, ppos, tok, MDOC_Bl)); |
return(0); |
case (MDOC_Ed): |
if ( ! rewind_impblock(mdoc, tok, line, ppos)) |
return(scope_rewind_exp(mdoc, ppos, tok, MDOC_Bd)); |
return(0); |
default: |
|
break; |
|
} |
} |
|
|
assert(MDOC_EXPLICIT & mdoc_macros[tok].flags); |
/* Parse arguments. */ |
|
|
/* Token pre-processing. */ |
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
|
lastarg = *pos; |
switch (tok) { |
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
case (MDOC_Bl): |
if (ARGV_EOLN == c) |
/* FALLTHROUGH */ |
|
case (MDOC_Bd): |
|
/* `.Pp' ignored when preceding `.Bl' or `.Bd'. */ |
|
assert(mdoc->last); |
|
if (MDOC_ELEM != mdoc->last->type) |
|
break; |
break; |
if (MDOC_Pp != mdoc->last->data.elem.tok) |
if (ARGV_WORD == c) { |
|
*pos = lastarg; |
break; |
break; |
if ( ! mdoc_warn(mdoc, tok, ppos, WARN_IGN_BEFORE_BLK)) |
} else if (ARGV_ARG == c) |
|
continue; |
|
mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
|
|
if (MDOC_LINEARG_MAX == argc) { |
|
mdoc_argv_free(argc - 1, argv); |
|
return(mdoc_perr(mdoc, line, ppos, "parameter hard-limit exceeded")); |
|
} |
|
|
|
c = mdoc_block_alloc(mdoc, line, ppos, |
|
tok, (size_t)argc, argv); |
|
mdoc_argv_free(argc, argv); |
|
|
|
if (0 == c) |
|
return(0); |
|
|
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
if (0 == buf[*pos]) { |
|
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
return(0); |
return(0); |
assert(mdoc->last->prev); |
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
n = mdoc->last; |
return(0); |
mdoc->last = mdoc->last->prev; |
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
mdoc->last->next = NULL; |
return(0); |
mdoc_node_free(n); |
mdoc->next = MDOC_NEXT_CHILD; |
break; |
return(1); |
default: |
|
break; |
|
} |
} |
|
|
lastarg = *pos; |
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
for (j = 0; j < MDOC_LINEARG_MAX; j++) { |
fl = ARGS_DELIM; |
|
if (MDOC_TABSEP & mdoc_macros[tok].flags) |
|
fl |= ARGS_TABSEP; |
|
|
|
for (;;) { |
lastarg = *pos; |
lastarg = *pos; |
c = mdoc_argv(mdoc, tok, &argv[j], pos, buf); |
c = mdoc_args(mdoc, line, pos, buf, fl, &p); |
if (0 == c) |
|
|
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_PUNCT == c) |
break; |
break; |
else if (1 == c) |
if (ARGS_EOLN == c) |
|
break; |
|
|
|
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
|
return(0); |
|
else if (MDOC_MAX == c) { |
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
continue; |
continue; |
|
} |
|
|
mdoc_argv_free(j, argv); |
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
return(0); |
return(0); |
|
break; |
} |
} |
|
|
if (MDOC_LINEARG_MAX == j) { |
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
mdoc_argv_free(j, argv); |
return(0); |
return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
if (1 == ppos && ! append_delims(mdoc, line, pos, buf)) |
} |
return(0); |
|
|
c = append_scoped(mdoc, tok, ppos, 0, NULL, j, argv); |
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
mdoc_argv_free(j, argv); |
return(0); |
return(c); |
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
return(1); |
} |
} |
|
|
|
|
/* |
/* |
* Implicity-scoped macros, like `.Ss', have a scope that terminates |
* This handles a case of implicitly-scoped macro (BLOCK) limited to a |
* with a subsequent call to the same macro. Implicit macros cannot |
* single line. Instead of being closed out by a subsequent call to |
* break the scope of explicitly-scoped macros; however, they can break |
* another macro, the scope is closed at the end of line. These don't |
* the scope of other implicit macros (so `.Sh' can break `.Ss'). This |
* have BODY or TAIL types. Notice that the punctuation falls outside |
* is ok with macros like `.It' because they exist only within an |
* of the HEAD type. |
* explicit context. |
|
* |
* |
* These macros put line arguments (which it's allowed to have) into the |
* .Qq a Fl b Ar d ; ; |
* HEAD section and open a BODY scope to be used until the macro scope |
* |
* closes. |
* BLOCK (Qq) |
|
* HEAD |
|
* TEXT (`a') |
|
* ELEMENT (.Fl) |
|
* TEXT (`b') |
|
* ELEMENT (.Ar) |
|
* TEXT (`d') |
|
* TEXT (`;') |
|
* TEXT (`;') |
*/ |
*/ |
int |
int |
macro_scoped_implicit(MACRO_PROT_ARGS) |
macro_scoped_line(MACRO_PROT_ARGS) |
{ |
{ |
int lastarg, j; |
int lastarg, c; |
char *args[MDOC_LINEARG_MAX]; |
char *p; |
struct mdoc_node *n; |
|
|
|
assert( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)); |
if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, 0, NULL)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
if (SEC_PROLOGUE == mdoc->sec_lastn) |
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); |
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
/* Token pre-processing. */ |
/* XXX - no known argument macros. */ |
|
|
switch (tok) { |
lastarg = ppos; |
case (MDOC_Ss): |
for (;;) { |
/* FALLTHROUGH */ |
lastarg = *pos; |
case (MDOC_Sh): |
c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
/* `.Pp' ignored when preceding `.Ss' or `.Sh'. */ |
|
if (NULL == mdoc->last) |
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_PUNCT == c) |
break; |
break; |
if (MDOC_ELEM != mdoc->last->type) |
if (ARGS_EOLN == c) |
break; |
break; |
if (MDOC_Pp != mdoc->last->data.elem.tok) |
|
break; |
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
if ( ! mdoc_warn(mdoc, tok, ppos, WARN_IGN_BEFORE_BLK)) |
|
return(0); |
return(0); |
assert(mdoc->last->prev); |
else if (MDOC_MAX == c) { |
n = mdoc->last; |
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
mdoc_msg(mdoc, ppos, "removing prior `Pp' macro"); |
return(0); |
mdoc->last = mdoc->last->prev; |
mdoc->next = MDOC_NEXT_SIBLING; |
mdoc->last->next = NULL; |
continue; |
mdoc_node_free(n); |
} |
|
|
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
break; |
break; |
|
} |
|
|
|
if (1 == ppos) { |
|
if ( ! rewind_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
|
return(0); |
|
if ( ! append_delims(mdoc, line, pos, buf)) |
|
return(0); |
|
} else if ( ! rewind_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
|
return(0); |
|
return(rewind_impblock(mdoc, tok, line, ppos)); |
|
} |
|
|
|
|
|
/* |
|
* A constant-scoped macro is like a simple-scoped macro (mdoc_scoped) |
|
* except that it doesn't handle implicit scopes and explicit ones have |
|
* a fixed number of TEXT children to the BODY. |
|
* |
|
* .Fl a So b Sc ; |
|
* |
|
* ELEMENT (.Fl) |
|
* TEXT (`a') |
|
* BLOCK (.So) |
|
* HEAD |
|
* BODY |
|
* TEXT (`b') |
|
* TEXT (';') |
|
*/ |
|
int |
|
macro_constant_scoped(MACRO_PROT_ARGS) |
|
{ |
|
int lastarg, flushed, j, c, maxargs; |
|
char *p; |
|
|
|
lastarg = ppos; |
|
flushed = 0; |
|
|
|
switch (tok) { |
|
case (MDOC_Eo): |
|
maxargs = 1; |
|
break; |
default: |
default: |
|
maxargs = 0; |
break; |
break; |
} |
} |
|
|
/* Rewind our scope. */ |
if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, 0, NULL)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
if ( ! scope_rewind_imp(mdoc, ppos, tok)) |
if (0 == maxargs) { |
|
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
flushed = 1; |
|
} else if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
return(0); |
return(0); |
|
|
j = 0; |
mdoc->next = MDOC_NEXT_CHILD; |
lastarg = ppos; |
|
|
|
/* |
for (j = 0; /* No sentinel. */; j++) { |
* Process until we hit a line. Note that current implicit |
lastarg = *pos; |
* macros don't have any arguments, so we don't need to do any |
|
* argument processing. |
|
*/ |
|
|
|
again: |
if (j == maxargs && ! flushed) { |
if (j == MDOC_LINEARG_MAX) |
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
return(0); |
|
flushed = 1; |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
lastarg = *pos; |
c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
|
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_PUNCT == c) |
|
break; |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
switch (mdoc_args(mdoc, tok, pos, buf, 0, &args[j])) { |
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
case (ARGS_ERROR): |
return(0); |
return(0); |
else if (MDOC_MAX != c) { |
case (ARGS_EOLN): |
if ( ! flushed) { |
return(append_scoped(mdoc, tok, ppos, j, _CC(args), 0, NULL)); |
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
default: |
return(0); |
break; |
flushed = 1; |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
|
break; |
|
} |
|
|
|
if ( ! flushed && mdoc_isdelim(p)) { |
|
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
flushed = 1; |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
} |
} |
|
|
if (MDOC_MAX != mdoc_find(mdoc, args[j])) |
if ( ! flushed) { |
if ( ! mdoc_warn(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE)) |
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
return(0); |
return(0); |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
j++; |
if (ppos > 1) |
goto again; |
return(1); |
/* NOTREACHED */ |
return(append_delims(mdoc, line, pos, buf)); |
} |
} |
|
|
|
|
/* |
/* |
* A line-scoped macro opens a scope for the contents of its line, which |
* A delimited constant is very similar to the macros parsed by |
* are placed under the HEAD node. Punctuation trailing the line is put |
* macro_text except that, in the event of punctuation, the macro isn't |
* as a sibling to the HEAD node, under the BLOCK node. |
* "re-opened" as it is in macro_text. Also, these macros have a fixed |
|
* number of parameters. |
|
* |
|
* .Fl a No b |
|
* |
|
* ELEMENT (.Fl) |
|
* TEXT (`a') |
|
* ELEMENT (.No) |
|
* TEXT (`b') |
*/ |
*/ |
int |
int |
macro_scoped_line(MACRO_PROT_ARGS) |
macro_constant_delimited(MACRO_PROT_ARGS) |
{ |
{ |
int lastarg, c, j; |
int lastarg, flushed, j, c, maxargs, argc; |
char *p; |
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
struct mdoc_node *n; |
char *p; |
|
|
if (SEC_PROLOGUE == mdoc->sec_lastn) |
lastarg = ppos; |
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); |
flushed = 0; |
|
|
assert(1 == ppos); |
|
|
|
/* Token pre-processing. */ |
|
|
|
switch (tok) { |
switch (tok) { |
case (MDOC_D1): |
case (MDOC_No): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_Dl): |
case (MDOC_Ns): |
/* These can't be nested in a display block. */ |
/* FALLTHROUGH */ |
assert(mdoc->last); |
case (MDOC_Pf): |
for (n = mdoc->last->parent ; n; n = n->parent) |
/* FALLTHROUGH */ |
if (MDOC_BLOCK != n->type) |
case (MDOC_Ux): |
continue; |
/* FALLTHROUGH */ |
else if (MDOC_Bd == n->data.block.tok) |
case (MDOC_St): |
break; |
maxargs = 0; |
if (NULL == n) |
break; |
break; |
|
return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_NONEST)); |
|
default: |
default: |
|
maxargs = 1; |
break; |
break; |
} |
} |
|
|
/* |
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
* All line-scoped macros have a HEAD and optionally a BODY |
lastarg = *pos; |
* section. We open our scope here; when we exit this function, |
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
* we'll rewind our scope appropriately. |
if (ARGV_EOLN == c) |
*/ |
break; |
|
if (ARGV_WORD == c) { |
|
*pos = lastarg; |
|
break; |
|
} else if (ARGV_ARG == c) |
|
continue; |
|
mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
|
mdoc_block_alloc(mdoc, ppos, tok, 0, NULL); |
if (MDOC_LINEARG_MAX == argc) { |
mdoc_head_alloc(mdoc, ppos, tok, 0, NULL); |
mdoc_argv_free(argc - 1, argv); |
|
return(mdoc_perr(mdoc, line, ppos, "parameter hard-limit exceeded")); |
|
} |
|
|
/* Process line parameters. */ |
c = mdoc_elem_alloc(mdoc, line, ppos, tok, argc, argv); |
|
mdoc_argv_free(argc, argv); |
|
|
j = 0; |
if (0 == c) |
lastarg = ppos; |
return(0); |
|
|
again: |
mdoc->next = MDOC_NEXT_CHILD; |
if (j == MDOC_LINEARG_MAX) |
|
return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
|
|
|
lastarg = *pos; |
for (j = 0; /* No sentinel. */; j++) { |
c = mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p); |
lastarg = *pos; |
|
|
switch (c) { |
if (j == maxargs && ! flushed) { |
case (ARGS_ERROR): |
if ( ! rewind_elem(mdoc, tok)) |
return(0); |
return(0); |
case (ARGS_WORD): |
flushed = 1; |
break; |
} |
case (ARGS_PUNCT): |
|
if ( ! append_delims(mdoc, tok, pos, buf)) |
c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
|
if (ARGS_ERROR == c) |
return(0); |
return(0); |
return(scope_rewind_imp(mdoc, ppos, tok)); |
if (ARGS_PUNCT == c) |
case (ARGS_EOLN): |
break; |
return(scope_rewind_imp(mdoc, ppos, tok)); |
if (ARGS_EOLN == c) |
default: |
break; |
abort(); |
|
/* NOTREACHED */ |
|
} |
|
|
|
if (MDOC_MAX != (c = mdoc_find(mdoc, p))) { |
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) |
|
return(0); |
return(0); |
if ( ! append_delims(mdoc, tok, pos, buf)) |
else if (MDOC_MAX != c) { |
|
if ( ! flushed && ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
|
break; |
|
} |
|
|
|
if ( ! flushed && mdoc_isdelim(p)) { |
|
if ( ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
|
} |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
return(0); |
return(0); |
return(scope_rewind_imp(mdoc, ppos, tok)); |
mdoc->next = MDOC_NEXT_SIBLING; |
} |
} |
|
|
if (mdoc_isdelim(p)) |
if ( ! flushed && ! rewind_elem(mdoc, tok)) |
j = 0; |
return(0); |
|
|
mdoc_word_alloc(mdoc, lastarg, p); |
if (ppos > 1) |
goto again; |
return(1); |
/* NOTREACHED */ |
return(append_delims(mdoc, line, pos, buf)); |
} |
} |
|
|
|
|
/* |
/* |
* Partial-line scope is identical to line scope (macro_scoped_line()) |
* A constant macro is the simplest classification. It spans an entire |
* except that trailing punctuation is appended to the BLOCK, instead of |
* line. |
* contained within the HEAD. |
|
*/ |
*/ |
int |
int |
macro_scoped_pline(MACRO_PROT_ARGS) |
macro_constant(MACRO_PROT_ARGS) |
{ |
{ |
int lastarg, c, j; |
int c, w, la, argc, fl; |
char *p; |
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
|
char *p; |
|
|
if (SEC_PROLOGUE == mdoc->sec_lastn) |
assert( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)); |
return(mdoc_err(mdoc, tok, ppos, ERR_SEC_PROLOGUE)); |
|
|
|
/* Token pre-processing. */ |
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
|
la = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
|
if (ARGV_EOLN == c) |
|
break; |
|
if (ARGV_WORD == c) { |
|
*pos = la; |
|
break; |
|
} else if (ARGV_ARG == c) |
|
continue; |
|
|
switch (tok) { |
mdoc_argv_free(argc, argv); |
case (MDOC_Ql): |
return(0); |
if ( ! mdoc_warn(mdoc, tok, ppos, WARN_COMPAT_TROFF)) |
|
return(0); |
|
break; |
|
default: |
|
break; |
|
} |
} |
|
|
mdoc_block_alloc(mdoc, ppos, tok, 0, NULL); |
if (MDOC_LINEARG_MAX == argc) { |
mdoc_head_alloc(mdoc, ppos, tok, 0, NULL); |
mdoc_argv_free(argc - 1, argv); |
|
return(mdoc_perr(mdoc, line, ppos, "parameter hard-limit exceeded")); |
|
} |
|
|
/* Process line parameters. */ |
c = mdoc_elem_alloc(mdoc, line, ppos, tok, argc, argv); |
|
mdoc_argv_free(argc, argv); |
|
|
j = 0; |
if (0 == c) |
lastarg = ppos; |
return(0); |
|
|
again: |
mdoc->next = MDOC_NEXT_CHILD; |
if (j == MDOC_LINEARG_MAX) |
|
return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
|
|
|
lastarg = *pos; |
fl = 0; |
c = mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p); |
if (MDOC_QUOTABLE & mdoc_macros[tok].flags) |
|
fl = ARGS_QUOTED; |
|
|
switch (c) { |
for (;;) { |
case (ARGS_ERROR): |
la = *pos; |
return(0); |
w = mdoc_args(mdoc, line, pos, buf, fl, &p); |
case (ARGS_WORD): |
if (ARGS_ERROR == w) |
break; |
|
case (ARGS_PUNCT): |
|
if ( ! scope_rewind_imp(mdoc, ppos, tok)) |
|
return(0); |
return(0); |
if (ppos > 1) |
if (ARGS_EOLN == w) |
return(1); |
break; |
return(append_delims(mdoc, tok, pos, buf)); |
|
case (ARGS_EOLN): |
|
return(scope_rewind_imp(mdoc, ppos, tok)); |
|
default: |
|
abort(); |
|
/* NOTREACHED */ |
|
} |
|
|
|
if (MDOC_MAX != (c = mdoc_find(mdoc, p))) { |
c = ARGS_QWORD == w ? MDOC_MAX : |
if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) |
lookup(mdoc, line, la, tok, p); |
|
|
|
if (MDOC_MAX != c && -1 != c) { |
|
if ( ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
return(mdoc_macro(mdoc, c, line, la, pos, buf)); |
|
} else if (-1 == c) |
return(0); |
return(0); |
if ( ! scope_rewind_imp(mdoc, ppos, tok)) |
|
|
if ( ! mdoc_word_alloc(mdoc, line, la, p)) |
return(0); |
return(0); |
if (ppos > 1) |
mdoc->next = MDOC_NEXT_SIBLING; |
return(1); |
|
return(append_delims(mdoc, tok, pos, buf)); |
|
} |
} |
|
|
if (mdoc_isdelim(p)) |
return(rewind_elem(mdoc, tok)); |
j = 0; |
} |
|
|
mdoc_word_alloc(mdoc, lastarg, p); |
|
goto again; |
/* ARGSUSED */ |
/* NOTREACHED */ |
int |
|
macro_obsolete(MACRO_PROT_ARGS) |
|
{ |
|
|
|
return(mdoc_pwarn(mdoc, line, ppos, WARN_SYNTAX, "macro is obsolete")); |
} |
} |
|
|
|
|
|
/* |
|
* This is called at the end of parsing. It must traverse up the tree, |
|
* closing out open [implicit] scopes. Obviously, open explicit scopes |
|
* are errors. |
|
*/ |
|
int |
|
macro_end(struct mdoc *mdoc) |
|
{ |
|
struct mdoc_node *n; |
|
|
|
assert(mdoc->first); |
|
assert(mdoc->last); |
|
|
|
/* Scan for open explicit scopes. */ |
|
|
|
n = MDOC_VALID & mdoc->last->flags ? |
|
mdoc->last->parent : mdoc->last; |
|
|
|
for ( ; n; n = n->parent) { |
|
if (MDOC_BLOCK != n->type) |
|
continue; |
|
if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags)) |
|
continue; |
|
return(mdoc_nerr(mdoc, n, "macro scope still open on exit")); |
|
} |
|
|
|
return(rewind_last(mdoc, mdoc->first)); |
|
} |