version 1.3, 2008/12/15 02:23:12 |
version 1.29, 2009/01/08 15:59:58 |
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#include <ctype.h> |
#include <ctype.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <stdio.h> |
#include <stdio.h> |
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#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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#include "private.h" |
#include "private.h" |
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#define _CC(p) ((const char **)p) |
/* FIXME: maxlineargs should be per LINE, no per TOKEN. */ |
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static int append_text(struct mdoc *, int, |
static int rewind_elem(struct mdoc *, int); |
int, int, char *[]); |
static int rewind_impblock(struct mdoc *, int); |
static int append_scoped(struct mdoc *, int, |
static int rewind_expblock(struct mdoc *, int); |
int, int, char *[]); |
static int rewind_head(struct mdoc *, int); |
static int isdelim(const char *); |
static int rewind_body(struct mdoc *, int); |
static int args_next(struct mdoc *, int, |
static int rewind_last(struct mdoc *, struct mdoc_node *); |
int *, char *, char **); |
static int append_delims(struct mdoc *, |
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int, int, int *, char *); |
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static int lookup(struct mdoc *, int, const char *); |
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static int |
static int |
isdelim(const char *p) |
lookup(struct mdoc *mdoc, int from, const char *p) |
{ |
{ |
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if (0 == *p) |
if ( ! (MDOC_PARSED & mdoc_macros[from].flags)) |
return(0); |
return(MDOC_MAX); |
if (0 != *(p + 1)) |
return(mdoc_find(mdoc, p)); |
return(0); |
} |
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switch (*p) { |
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case('{'): |
static int |
/* FALLTHROUGH */ |
rewind_last(struct mdoc *mdoc, struct mdoc_node *to) |
case('.'): |
{ |
/* FALLTHROUGH */ |
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case(','): |
assert(to); |
/* FALLTHROUGH */ |
if (mdoc->last == to) |
case(';'): |
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/* FALLTHROUGH */ |
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case(':'): |
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/* FALLTHROUGH */ |
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case('?'): |
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/* FALLTHROUGH */ |
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case('!'): |
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/* FALLTHROUGH */ |
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case('('): |
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/* FALLTHROUGH */ |
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case(')'): |
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/* FALLTHROUGH */ |
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case('['): |
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/* FALLTHROUGH */ |
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case(']'): |
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/* FALLTHROUGH */ |
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case('}'): |
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return(1); |
return(1); |
default: |
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break; |
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} |
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return(0); |
do { |
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mdoc->last = mdoc->last->parent; |
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assert(mdoc->last); |
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if ( ! mdoc_valid_post(mdoc)) |
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return(0); |
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if ( ! mdoc_action_post(mdoc)) |
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return(0); |
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} while (mdoc->last != to); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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return(1); |
} |
} |
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static int |
static int |
args_next(struct mdoc *mdoc, int tok, |
rewind_elem(struct mdoc *mdoc, int tok) |
int *pos, char *buf, char **v) |
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{ |
{ |
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struct mdoc_node *n; |
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if (0 == buf[*pos]) |
n = mdoc->last; |
return(0); |
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->data.elem.tok); |
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assert( ! isspace(buf[*pos])); |
return(rewind_last(mdoc, n)); |
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} |
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if ('\"' == buf[*pos]) { |
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(void)mdoc_err(mdoc, tok, *pos, ERR_SYNTAX_QUOTE); |
static int |
return(-1); |
rewind_body(struct mdoc *mdoc, int tok) |
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{ |
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struct mdoc_node *n; |
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int t; |
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assert(mdoc->last); |
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/* LINTED */ |
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for (n = mdoc->last; n; n = n->parent) { |
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if (MDOC_BODY != n->type) |
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continue; |
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if (tok == (t = n->data.head.tok)) |
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break; |
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if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags)) |
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continue; |
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return(mdoc_verr(mdoc, n, ERR_SCOPE_BREAK)); |
} |
} |
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*v = &buf[*pos]; |
assert(n); |
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return(rewind_last(mdoc, n)); |
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} |
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/* Scan ahead to end of token. */ |
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while (buf[*pos] && ! isspace(buf[*pos])) |
static int |
(*pos)++; |
rewind_head(struct mdoc *mdoc, int tok) |
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{ |
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struct mdoc_node *n; |
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int t; |
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if (buf[*pos] && buf[*pos + 1] && '\\' == buf[*pos]) { |
assert(mdoc->last); |
(void)mdoc_err(mdoc, tok, *pos, ERR_SYNTAX_WS); |
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return(-1); |
/* LINTED */ |
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for (n = mdoc->last; n; n = n->parent) { |
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if (MDOC_HEAD != n->type) |
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continue; |
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if (tok == (t = n->data.head.tok)) |
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break; |
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if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags)) |
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continue; |
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return(mdoc_verr(mdoc, n, ERR_SCOPE_BREAK)); |
} |
} |
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if (0 == buf[*pos]) |
assert(n); |
return(1); |
return(rewind_last(mdoc, n)); |
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} |
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/* Scan ahead over trailing whitespace. */ |
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buf[(*pos)++] = 0; |
static int |
while (buf[*pos] && isspace(buf[*pos])) |
rewind_expblock(struct mdoc *mdoc, int tok) |
(*pos)++; |
{ |
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struct mdoc_node *n; |
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int t; |
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if (0 == buf[*pos]) |
assert(mdoc->last); |
if ( ! mdoc_warn(mdoc, tok, *pos, WARN_SYNTAX_WS_EOLN)) |
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return(-1); |
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return(1); |
/* LINTED */ |
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for (n = mdoc->last; n; n = n->parent) { |
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if (MDOC_BLOCK != n->type) |
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continue; |
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if (tok == (t = n->data.block.tok)) |
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break; |
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if (MDOC_NESTED & mdoc_macros[t].flags) |
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continue; |
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return(mdoc_verr(mdoc, n, ERR_SCOPE_BREAK)); |
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} |
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assert(n); |
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return(rewind_last(mdoc, n)); |
} |
} |
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static int |
static int |
append_scoped(struct mdoc *mdoc, int tok, |
rewind_impblock(struct mdoc *mdoc, int tok) |
int pos, int sz, char *args[]) |
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{ |
{ |
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int t; |
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struct mdoc_node *n; |
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assert(sz >= 0); |
n = mdoc->last ? mdoc->last->parent : NULL; |
args[sz] = NULL; |
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mdoc_block_alloc(mdoc, pos, tok, 0, NULL); |
/* LINTED */ |
mdoc_head_alloc(mdoc, pos, tok, (size_t)sz, _CC(args)); |
for ( ; n; n = n->parent) { |
mdoc_body_alloc(mdoc, pos, tok); |
if (MDOC_BLOCK != n->type) |
return(1); |
continue; |
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if (tok == (t = n->data.block.tok)) |
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break; |
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if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags)) |
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continue; |
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if (MDOC_NESTED & mdoc_macros[t].flags) |
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return(1); |
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return(mdoc_verr(mdoc, n, ERR_SCOPE_BREAK)); |
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} |
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if (NULL == n) |
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return(1); |
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return(rewind_last(mdoc, n)); |
} |
} |
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static int |
static int |
append_text(struct mdoc *mdoc, int tok, |
append_delims(struct mdoc *mdoc, int tok, |
int pos, int sz, char *args[]) |
int line, int *pos, char *buf) |
{ |
{ |
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int c, lastarg; |
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char *p; |
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assert(sz >= 0); |
if (0 == buf[*pos]) |
args[sz] = NULL; |
return(1); |
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for (;;) { |
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lastarg = *pos; |
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c = mdoc_args(mdoc, line, 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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if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
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return(0); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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} |
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return(1); |
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} |
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/* ARGSUSED */ |
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int |
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macro_close_explicit(MACRO_PROT_ARGS) |
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{ |
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int tt, j, c, lastarg, maxargs, flushed; |
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char *p; |
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switch (tok) { |
switch (tok) { |
/* ======= ADD MORE MACRO ARGUMENT-LIMITS BELOW. ======= */ |
case (MDOC_Ac): |
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tt = MDOC_Ao; |
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break; |
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case (MDOC_Bc): |
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tt = MDOC_Bo; |
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break; |
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case (MDOC_Dc): |
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tt = MDOC_Do; |
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break; |
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case (MDOC_Ec): |
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tt = MDOC_Eo; |
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break; |
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case (MDOC_Ed): |
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tt = MDOC_Bd; |
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break; |
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case (MDOC_Ef): |
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tt = MDOC_Bf; |
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break; |
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case (MDOC_Ek): |
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tt = MDOC_Bk; |
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break; |
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case (MDOC_El): |
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tt = MDOC_Bl; |
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break; |
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case (MDOC_Fc): |
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tt = MDOC_Fo; |
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break; |
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case (MDOC_Oc): |
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tt = MDOC_Oo; |
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break; |
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case (MDOC_Pc): |
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tt = MDOC_Po; |
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break; |
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case (MDOC_Qc): |
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tt = MDOC_Qo; |
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break; |
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case (MDOC_Re): |
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tt = MDOC_Rs; |
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break; |
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case (MDOC_Sc): |
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tt = MDOC_So; |
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break; |
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case (MDOC_Xc): |
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tt = MDOC_Xo; |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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case (MDOC_Ft): |
switch (tok) { |
/* FALLTHROUGH */ |
case (MDOC_Ec): |
case (MDOC_Li): |
maxargs = 1; |
/* FALLTHROUGH */ |
break; |
case (MDOC_Ms): |
default: |
/* FALLTHROUGH */ |
maxargs = 0; |
case (MDOC_Pa): |
break; |
/* FALLTHROUGH */ |
} |
case (MDOC_Tn): |
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if (0 == sz && ! mdoc_warn(mdoc, tok, pos, WARN_ARGS_GE1)) |
if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) { |
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if (buf[*pos]) |
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return(rewind_expblock(mdoc, tt)); |
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return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_EQ0)); |
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} |
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if ( ! rewind_body(mdoc, tt)) |
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return(0); |
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lastarg = ppos; |
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flushed = 0; |
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if (maxargs > 0) { |
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if ( ! mdoc_tail_alloc(mdoc, line, ppos, tt)) |
return(0); |
return(0); |
mdoc_elem_alloc(mdoc, pos, tok, 0, |
mdoc->next = MDOC_NEXT_CHILD; |
NULL, (size_t)sz, _CC(args)); |
} |
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for (j = 0; j < MDOC_LINEARG_MAX; j++) { |
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lastarg = *pos; |
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if (j == maxargs && ! flushed) { |
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if ( ! rewind_expblock(mdoc, tt)) |
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return(0); |
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flushed = 1; |
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} |
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c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
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if (ARGS_ERROR == c) |
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return(0); |
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if (ARGS_PUNCT == c) |
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break; |
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if (ARGS_EOLN == c) |
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break; |
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if (MDOC_MAX != (c = lookup(mdoc, tok, p))) { |
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if ( ! flushed) { |
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if ( ! rewind_expblock(mdoc, tt)) |
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return(0); |
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flushed = 1; |
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} |
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if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
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return(0); |
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break; |
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} |
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if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
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return(0); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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} |
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if (MDOC_LINEARG_MAX == j) |
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return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
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if ( ! flushed && ! rewind_expblock(mdoc, tt)) |
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return(0); |
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if (ppos > 1) |
return(1); |
return(1); |
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return(append_delims(mdoc, tok, line, pos, buf)); |
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} |
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case (MDOC_Ar): |
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/* FALLTHROUGH */ |
/* |
case (MDOC_Cm): |
* A general text domain macro. When invoked, this opens a scope that |
/* FALLTHROUGH */ |
* accepts words until either end-of-line, only-punctuation, or a |
case (MDOC_Fl): |
* callable macro. If the word is punctuation (not only-punctuation), |
mdoc_elem_alloc(mdoc, pos, tok, 0, |
* then the scope is closed out, the punctuation appended, then the |
NULL, (size_t)sz, _CC(args)); |
* scope opened again. If any terminating conditions are met, the scope |
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* is closed out. If this is the first macro in the line and |
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* only-punctuation remains, this punctuation is flushed. |
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*/ |
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int |
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macro_text(MACRO_PROT_ARGS) |
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{ |
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int la, lastpunct, c, sz, fl, argc; |
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struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
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char *p; |
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la = ppos; |
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lastpunct = 0; |
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for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
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la = *pos; |
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c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
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if (ARGV_EOLN == c || ARGV_WORD == c) |
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break; |
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else if (ARGV_ARG == c) |
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continue; |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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if (MDOC_LINEARG_MAX == argc) { |
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mdoc_argv_free(argc, argv); |
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return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
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} |
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c = mdoc_elem_alloc(mdoc, line, la, tok, argc, argv); |
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if (0 == c) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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mdoc->next = MDOC_NEXT_CHILD; |
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fl = ARGS_DELIM; |
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if (MDOC_QUOTABLE & mdoc_macros[tok].flags) |
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fl |= ARGS_QUOTED; |
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for (lastpunct = sz = 0; sz + argc < MDOC_LINEARG_MAX; sz++) { |
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la = *pos; |
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if (lastpunct) { |
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c = mdoc_elem_alloc(mdoc, line, |
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la, tok, argc, argv); |
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if (0 == c) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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mdoc->next = MDOC_NEXT_CHILD; |
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lastpunct = 0; |
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} |
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c = mdoc_args(mdoc, line, pos, buf, fl, &p); |
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if (ARGS_ERROR == c) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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if (ARGS_EOLN == c) |
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break; |
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if (ARGS_PUNCT == c) |
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break; |
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if (MDOC_MAX != (c = lookup(mdoc, tok, p))) { |
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if ( ! rewind_elem(mdoc, tok)) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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mdoc_argv_free(argc, argv); |
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c = mdoc_macro(mdoc, c, line, la, pos, buf); |
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if (0 == c) |
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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, line, pos, buf)); |
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} |
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if (mdoc_isdelim(p)) { |
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if ( ! rewind_elem(mdoc, tok)) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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lastpunct = 1; |
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} |
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if ( ! mdoc_word_alloc(mdoc, line, la, p)) |
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return(0); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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} |
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mdoc_argv_free(argc, argv); |
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if (sz == MDOC_LINEARG_MAX) |
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return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
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if ( ! rewind_elem(mdoc, tok)) |
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return(0); |
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if (ppos > 1) |
return(1); |
return(1); |
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return(append_delims(mdoc, tok, line, pos, buf)); |
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} |
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case (MDOC_Ad): |
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/* FALLTHROUGH */ |
/* |
case (MDOC_Em): |
* Implicit- or explicit-end multi-line scoped macro. |
/* FALLTHROUGH */ |
*/ |
case (MDOC_Er): |
int |
/* FALLTHROUGH */ |
macro_scoped(MACRO_PROT_ARGS) |
case (MDOC_Ev): |
{ |
/* FALLTHROUGH */ |
int c, lastarg, argc, j; |
case (MDOC_Fa): |
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
/* FALLTHROUGH */ |
char *p; |
case (MDOC_Dv): |
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/* FALLTHROUGH */ |
assert ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)); |
case (MDOC_Ic): |
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/* FALLTHROUGH */ |
if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) |
case (MDOC_Va): |
if ( ! rewind_impblock(mdoc, tok)) |
/* FALLTHROUGH */ |
return(0); |
case (MDOC_Vt): |
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if (0 == sz) |
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
return(mdoc_err(mdoc, tok, pos, ERR_ARGS_GE1)); |
lastarg = *pos; |
mdoc_elem_alloc(mdoc, pos, tok, 0, |
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
NULL, (size_t)sz, _CC(args)); |
if (ARGV_EOLN == c || ARGV_WORD == c) |
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break; |
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else if (ARGV_ARG == c) |
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continue; |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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|
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if (MDOC_LINEARG_MAX == argc) { |
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mdoc_argv_free(argc, argv); |
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return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
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} |
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c = mdoc_block_alloc(mdoc, line, ppos, |
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tok, (size_t)argc, argv); |
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mdoc_argv_free(argc, argv); |
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if (0 == c) |
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return(0); |
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mdoc->next = MDOC_NEXT_CHILD; |
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|
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if (0 == buf[*pos]) { |
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if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
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return(0); |
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if ( ! rewind_head(mdoc, tok)) |
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return(0); |
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if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
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return(0); |
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mdoc->next = MDOC_NEXT_CHILD; |
return(1); |
return(1); |
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} |
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/* ======= ADD MORE MACRO ARGUMENT-LIMITS ABOVE. ======= */ |
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
default: |
return(0); |
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mdoc->next = MDOC_NEXT_CHILD; |
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for (j = 0; j < MDOC_LINEARG_MAX; j++) { |
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lastarg = *pos; |
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c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
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|
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if (ARGS_ERROR == c) |
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return(0); |
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if (ARGS_PUNCT == c) |
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break; |
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if (ARGS_EOLN == c) |
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break; |
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|
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if (MDOC_MAX == (c = lookup(mdoc, tok, p))) { |
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if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
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return(0); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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continue; |
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} |
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|
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if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
break; |
break; |
} |
} |
|
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abort(); |
if (j == MDOC_LINEARG_MAX) |
/* NOTREACHED */ |
return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
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|
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if ( ! rewind_head(mdoc, tok)) |
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return(0); |
|
if (1 == ppos && ! append_delims(mdoc, tok, line, pos, buf)) |
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return(0); |
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|
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
return(1); |
} |
} |
|
|
|
|
|
/* |
|
* When scoped to a line, a macro encompasses all of the contents. This |
|
* differs from constants or text macros, where a new macro will |
|
* terminate the existing context. |
|
*/ |
int |
int |
macro_text(struct mdoc *mdoc, int tok, int ppos, int *pos, char *buf) |
macro_scoped_line(MACRO_PROT_ARGS) |
{ |
{ |
int lastarg, c, lasttok, lastpunct, j; |
int lastarg, c, j; |
char *args[MDOC_LINEARG_MAX], *p; |
char *p; |
|
|
lasttok = ppos; |
if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, 0, NULL)) |
lastpunct = 0; |
return(0); |
j = 0; |
mdoc->next = MDOC_NEXT_CHILD; |
|
|
again: |
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
|
lastarg = *pos; |
|
c = args_next(mdoc, tok, pos, buf, &args[j]); |
|
|
|
if (-1 == c) |
|
return(0); |
return(0); |
if (0 == c && ! lastpunct) |
mdoc->next = MDOC_NEXT_CHILD; |
return(append_text(mdoc, tok, lasttok, j, args)); |
|
else if (0 == c) |
|
return(1); |
|
|
|
/* Command found. */ |
/* XXX - no known argument macros. */ |
|
|
if (MDOC_MAX != (c = mdoc_find(mdoc, args[j]))) { |
for (lastarg = ppos, j = 0; j < MDOC_LINEARG_MAX; j++) { |
if ( ! lastpunct) |
lastarg = *pos; |
if ( ! append_text(mdoc, tok, lasttok, j, args)) |
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 (MDOC_MAX == (c = lookup(mdoc, tok, p))) { |
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
return(0); |
return(0); |
return(mdoc_macro(mdoc, c, lastarg, pos, buf)); |
mdoc->next = MDOC_NEXT_SIBLING; |
|
continue; |
|
} |
|
|
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
|
break; |
} |
} |
|
|
/* Word found. */ |
if (j == MDOC_LINEARG_MAX) |
|
return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
|
|
if ( ! isdelim(args[j])) { |
if (1 == ppos) { |
j++; |
if ( ! rewind_head(mdoc, tok)) |
goto again; |
return(0); |
|
if ( ! append_delims(mdoc, tok, line, pos, buf)) |
|
return(0); |
} |
} |
|
return(rewind_impblock(mdoc, tok)); |
|
} |
|
|
/* Punctuation found. */ |
|
|
|
p = args[j]; /* Save argument (NULL-ified in append). */ |
/* |
|
* Constant-scope macros accept a fixed number of arguments and behave |
|
* like constant macros except that they're scoped across lines. |
|
*/ |
|
int |
|
macro_constant_scoped(MACRO_PROT_ARGS) |
|
{ |
|
int lastarg, flushed, j, c, maxargs; |
|
char *p; |
|
|
if ( ! lastpunct) |
lastarg = ppos; |
if ( ! append_text(mdoc, tok, lasttok, j, args)) |
flushed = 0; |
|
|
|
switch (tok) { |
|
case (MDOC_Eo): |
|
maxargs = 1; |
|
break; |
|
default: |
|
maxargs = 0; |
|
break; |
|
} |
|
|
|
if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, 0, NULL)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
if (0 == maxargs) { |
|
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
return(0); |
return(0); |
|
if ( ! rewind_head(mdoc, tok)) |
|
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); |
|
|
args[j] = p; |
mdoc->next = MDOC_NEXT_CHILD; |
|
|
mdoc_word_alloc(mdoc, lastarg, args[j]); |
for (j = 0; j < MDOC_LINEARG_MAX; j++) { |
lastpunct = 1; |
lastarg = *pos; |
j = 0; |
|
|
|
goto again; |
if (j == maxargs && ! flushed) { |
|
if ( ! rewind_head(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
/* NOTREACHED */ |
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 (MDOC_MAX != (c = lookup(mdoc, tok, p))) { |
|
if ( ! flushed) { |
|
if ( ! rewind_head(mdoc, tok)) |
|
return(0); |
|
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_head(mdoc, tok)) |
|
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_LINEARG_MAX == j) |
|
return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
|
|
|
if ( ! flushed) { |
|
if ( ! rewind_head(mdoc, tok)) |
|
return(0); |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, tok, line, pos, buf)); |
} |
} |
|
|
|
|
|
/* |
|
* Delimited macros are like text macros except that, should punctuation |
|
* be encountered, the macro isn't re-started with remaining tokens |
|
* (it's only emitted once). Delimited macros can have a maximum number |
|
* of arguments. |
|
*/ |
int |
int |
macro_scoped_implicit(struct mdoc *mdoc, |
macro_constant_delimited(MACRO_PROT_ARGS) |
int tok, int ppos, int *pos, char *buf) |
|
{ |
{ |
int t, c, lastarg, j; |
int lastarg, flushed, j, c, maxargs, argc; |
char *args[MDOC_LINEARG_MAX]; |
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
struct mdoc_node *n; |
char *p; |
|
|
/* |
lastarg = ppos; |
* Look for an implicit parent. |
flushed = 0; |
*/ |
|
|
|
assert( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)); |
switch (tok) { |
|
case (MDOC_No): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ns): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ux): |
|
/* FALLTHROUGH */ |
|
case (MDOC_St): |
|
maxargs = 0; |
|
break; |
|
default: |
|
maxargs = 1; |
|
break; |
|
} |
|
|
/* LINTED */ |
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
for (n = mdoc->last; n; n = n->parent) { |
lastarg = *pos; |
if (MDOC_BLOCK != n->type) |
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
continue; |
if (ARGV_EOLN == c || ARGV_WORD == c) |
if (tok == (t = n->data.block.tok)) |
|
break; |
break; |
if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags)) |
else if (ARGV_ARG == c) |
continue; |
continue; |
return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK)); |
mdoc_argv_free(argc, argv); |
|
return(0); |
} |
} |
|
|
if (n) { |
c = mdoc_elem_alloc(mdoc, line, lastarg, tok, argc, argv); |
mdoc->last = n; |
mdoc_argv_free(argc, argv); |
mdoc_msg(mdoc, ppos, "scope: rewound `%s'", |
|
mdoc_macronames[tok]); |
|
} else |
|
mdoc_msg(mdoc, ppos, "scope: new `%s'", |
|
mdoc_macronames[tok]); |
|
|
|
j = 0; |
if (0 == c) |
|
return(0); |
|
|
again: |
mdoc->next = MDOC_NEXT_CHILD; |
|
|
lastarg = *pos; |
for (j = 0; j < MDOC_LINEARG_MAX; j++) { |
c = args_next(mdoc, tok, pos, buf, &args[j]); |
lastarg = *pos; |
|
|
|
if (j == maxargs && ! flushed) { |
|
if ( ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
|
} |
|
|
|
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 (MDOC_MAX != (c = lookup(mdoc, tok, p))) { |
|
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 (-1 == c) |
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} |
|
|
|
if (MDOC_LINEARG_MAX == j) |
|
return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
|
|
|
if ( ! flushed && rewind_elem(mdoc, tok)) |
return(0); |
return(0); |
|
|
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, tok, line, pos, buf)); |
|
} |
|
|
|
|
|
/* |
|
* Constant macros span an entire line: they constitute a macro and all |
|
* of its arguments and child data. |
|
*/ |
|
int |
|
macro_constant(MACRO_PROT_ARGS) |
|
{ |
|
int c, lastarg, argc, sz, fl; |
|
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
|
char *p; |
|
|
|
/* FIXME: parsing macros! */ |
|
|
|
fl = 0; |
|
if (MDOC_QUOTABLE & mdoc_macros[tok].flags) |
|
fl = ARGS_QUOTED; |
|
|
|
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
|
lastarg = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
|
if (ARGV_EOLN == c) |
|
break; |
|
else if (ARGV_ARG == c) |
|
continue; |
|
else if (ARGV_WORD == c) |
|
break; |
|
|
|
mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
|
|
c = mdoc_elem_alloc(mdoc, line, ppos, tok, argc, argv); |
|
mdoc_argv_free(argc, argv); |
|
|
if (0 == c) |
if (0 == c) |
return(append_scoped(mdoc, tok, ppos, j, args)); |
return(0); |
|
|
/* Command found. */ |
mdoc->next = MDOC_NEXT_CHILD; |
|
|
if (MDOC_MAX != (c = mdoc_find(mdoc, args[j]))) |
if (MDOC_LINEARG_MAX == argc) |
if ( ! mdoc_warn(mdoc, tok, lastarg, WARN_SYNTAX_MACLIKE)) |
return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
|
|
|
for (sz = 0; sz + argc < MDOC_LINEARG_MAX; sz++) { |
|
lastarg = *pos; |
|
c = mdoc_args(mdoc, line, pos, buf, fl, &p); |
|
if (ARGS_ERROR == c) |
return(0); |
return(0); |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
/* Word found. */ |
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} |
|
|
j++; |
if (MDOC_LINEARG_MAX == sz + argc) |
goto again; |
return(mdoc_perr(mdoc, line, ppos, ERR_ARGS_MANY)); |
|
|
/* NOTREACHED */ |
return(rewind_elem(mdoc, tok)); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
int |
|
macro_obsolete(MACRO_PROT_ARGS) |
|
{ |
|
|
|
return(mdoc_pwarn(mdoc, line, ppos, WARN_IGN_OBSOLETE)); |
|
} |
|
|
|
|
|
int |
|
macro_end(struct mdoc *mdoc) |
|
{ |
|
|
|
assert(mdoc->first); |
|
assert(mdoc->last); |
|
return(rewind_last(mdoc, mdoc->first)); |
} |
} |