version 1.1, 2008/12/12 10:11:10 |
version 1.72, 2009/03/16 22:19:19 |
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
|
#include <assert.h> |
|
#include <ctype.h> |
#include <stdlib.h> |
#include <stdlib.h> |
|
#include <stdio.h> |
|
#include <string.h> |
|
|
#include "roff.h" |
#include "private.h" |
|
|
|
/* |
|
* This has scanning/parsing routines, each of which extract a macro and |
|
* its arguments and parameters, then know how to progress to the next |
|
* macro. |
|
*/ |
|
|
|
/* FIXME: .Fl, .Ar, .Cd handling of `|'. */ |
|
|
|
enum mwarn { |
|
WMACPARM, |
|
WOBS |
|
}; |
|
|
|
enum merr { |
|
EOPEN, |
|
EQUOT, |
|
ENOCTX, |
|
ENOPARMS |
|
}; |
|
|
|
#define REWIND_REWIND (1 << 0) |
|
#define REWIND_NOHALT (1 << 1) |
|
#define REWIND_HALT (1 << 2) |
|
|
|
static int obsolete(MACRO_PROT_ARGS); |
|
static int blk_part_exp(MACRO_PROT_ARGS); |
|
static int in_line_eoln(MACRO_PROT_ARGS); |
|
static int in_line_argn(MACRO_PROT_ARGS); |
|
static int in_line(MACRO_PROT_ARGS); |
|
static int blk_full(MACRO_PROT_ARGS); |
|
static int blk_exp_close(MACRO_PROT_ARGS); |
|
static int blk_part_imp(MACRO_PROT_ARGS); |
|
|
|
static int phrase(struct mdoc *, int, int, char *); |
|
static int rew_dohalt(int, enum mdoc_type, |
|
const struct mdoc_node *); |
|
static int rew_alt(int); |
|
static int rew_dobreak(int, const struct mdoc_node *); |
|
static int rew_elem(struct mdoc *, int); |
|
static int rew_impblock(struct mdoc *, int, int, int); |
|
static int rew_expblock(struct mdoc *, int, int, int); |
|
static int rew_subblock(enum mdoc_type, |
|
struct mdoc *, int, int, int); |
|
static int rew_last(struct mdoc *, struct mdoc_node *); |
|
static int append_delims(struct mdoc *, int, int *, char *); |
|
static int lookup(struct mdoc *, int, int, int, const char *); |
|
static int pwarn(struct mdoc *, int, int, enum mwarn); |
|
static int perr(struct mdoc *, int, int, enum merr); |
|
static int swarn(struct mdoc *, enum mdoc_type, int, int, |
|
const struct mdoc_node *); |
|
|
|
#define nerr(m, n, t) perr((m), (n)->line, (n)->pos, (t)) |
|
|
|
/* Central table of library: who gets parsed how. */ |
|
|
|
const struct mdoc_macro __mdoc_macros[MDOC_MAX] = { |
|
{ NULL, 0 }, /* \" */ |
|
{ in_line_eoln, MDOC_PROLOGUE }, /* Dd */ |
|
{ in_line_eoln, MDOC_PROLOGUE }, /* Dt */ |
|
{ in_line_eoln, MDOC_PROLOGUE }, /* Os */ |
|
{ blk_full, 0 }, /* Sh */ |
|
{ blk_full, 0 }, /* Ss */ |
|
{ in_line, 0 }, /* Pp */ |
|
{ blk_part_imp, MDOC_PARSED }, /* D1 */ |
|
{ blk_part_imp, MDOC_PARSED }, /* Dl */ |
|
{ blk_full, MDOC_EXPLICIT }, /* Bd */ |
|
{ blk_exp_close, MDOC_EXPLICIT }, /* Ed */ |
|
{ blk_full, MDOC_EXPLICIT }, /* Bl */ |
|
{ blk_exp_close, MDOC_EXPLICIT }, /* El */ |
|
{ blk_full, MDOC_PARSED }, /* It */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */ |
|
{ in_line, MDOC_PARSED }, /* An */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */ |
|
{ in_line_eoln, MDOC_CALLABLE }, /* Cd */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */ |
|
{ in_line_eoln, 0 }, /* Ex */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */ |
|
{ in_line_eoln, 0 }, /* Fd */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */ |
|
{ in_line, MDOC_PARSED }, /* Ft */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ic */ |
|
{ in_line_eoln, 0 }, /* In */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */ |
|
{ in_line_eoln, 0 }, /* Nd */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */ |
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */ |
|
{ obsolete, 0 }, /* Ot */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */ |
|
{ in_line_eoln, 0 }, /* Rv */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */ |
|
{ in_line_eoln, 0 }, /* %A */ |
|
{ in_line_eoln, 0 }, /* %B */ |
|
{ in_line_eoln, 0 }, /* %D */ |
|
{ in_line_eoln, 0 }, /* %I */ |
|
{ in_line_eoln, 0 }, /* %J */ |
|
{ in_line_eoln, 0 }, /* %N */ |
|
{ in_line_eoln, 0 }, /* %O */ |
|
{ in_line_eoln, 0 }, /* %P */ |
|
{ in_line_eoln, 0 }, /* %R */ |
|
{ in_line_eoln, 0 }, /* %T */ |
|
{ in_line_eoln, 0 }, /* %V */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ac */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ao */ |
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Aq */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Bc */ |
|
{ blk_full, MDOC_EXPLICIT }, /* Bf */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bo */ |
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Bq */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */ |
|
{ in_line_eoln, 0 }, /* Db */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Dc */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Do */ |
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Dq */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Ec */ |
|
{ blk_exp_close, MDOC_EXPLICIT }, /* Ef */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Em */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */ |
|
{ in_line, MDOC_PARSED }, /* Ms */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */ |
|
{ in_line_argn, MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Po */ |
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Pq */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Qc */ |
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Ql */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Qo */ |
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Qq */ |
|
{ blk_exp_close, MDOC_EXPLICIT }, /* Re */ |
|
{ blk_full, MDOC_EXPLICIT }, /* Rs */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Sc */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* So */ |
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Sq */ |
|
{ in_line_eoln, 0 }, /* Sm */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sx */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Sy */ |
|
{ in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ux */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */ |
|
{ blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Fc */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Oo */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Oc */ |
|
{ blk_full, MDOC_EXPLICIT }, /* Bk */ |
|
{ blk_exp_close, MDOC_EXPLICIT }, /* Ek */ |
|
{ in_line_eoln, 0 }, /* Bt */ |
|
{ in_line_eoln, 0 }, /* Hf */ |
|
{ obsolete, 0 }, /* Fr */ |
|
{ in_line_eoln, 0 }, /* Ud */ |
|
{ in_line_eoln, 0 }, /* Lb */ |
|
{ in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ap */ |
|
{ in_line, 0 }, /* Lp */ |
|
{ in_line, MDOC_PARSED }, /* Lk */ |
|
{ in_line, MDOC_PARSED }, /* Mt */ |
|
{ blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Brq */ |
|
{ blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Bro */ |
|
{ blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Brc */ |
|
{ in_line_eoln, 0 }, /* %C */ |
|
{ obsolete, 0 }, /* Es */ |
|
{ obsolete, 0 }, /* En */ |
|
}; |
|
|
|
const struct mdoc_macro * const mdoc_macros = __mdoc_macros; |
|
|
|
|
static int |
static int |
macro_args_next(struct rofftree *tree, int *pos, char *buf, char **v) |
perr(struct mdoc *mdoc, int line, int pos, enum merr type) |
{ |
{ |
int i; |
char *p; |
|
|
|
p = NULL; |
|
switch (type) { |
|
case (EOPEN): |
|
p = "explicit scope still open on exit"; |
|
break; |
|
case (EQUOT): |
|
p = "unterminated quotation"; |
|
break; |
|
case (ENOCTX): |
|
p = "closure has no prior context"; |
|
break; |
|
case (ENOPARMS): |
|
p = "unexpect line arguments"; |
|
break; |
|
} |
|
assert(p); |
|
return(mdoc_perr(mdoc, line, pos, p)); |
|
} |
|
|
|
|
|
static int |
|
pwarn(struct mdoc *mdoc, int line, int pos, enum mwarn type) |
|
{ |
|
char *p; |
|
|
|
p = NULL; |
|
switch (type) { |
|
case (WMACPARM): |
|
p = "macro-like parameter"; |
|
break; |
|
case (WOBS): |
|
p = "macro marked obsolete"; |
|
break; |
|
} |
|
assert(p); |
|
return(mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX, p)); |
|
} |
|
|
|
|
|
static int |
|
swarn(struct mdoc *mdoc, enum mdoc_type type, |
|
int line, int pos, const struct mdoc_node *p) |
|
{ |
|
const char *n, *t, *tt; |
|
|
|
n = t = "<root>"; |
|
tt = "block"; |
|
|
|
switch (type) { |
|
case (MDOC_BODY): |
|
tt = "multi-line"; |
|
break; |
|
case (MDOC_HEAD): |
|
tt = "line"; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
switch (p->type) { |
|
case (MDOC_BLOCK): |
|
n = mdoc_macronames[p->tok]; |
|
t = "block"; |
|
break; |
|
case (MDOC_BODY): |
|
n = mdoc_macronames[p->tok]; |
|
t = "multi-line"; |
|
break; |
|
case (MDOC_HEAD): |
|
n = mdoc_macronames[p->tok]; |
|
t = "line"; |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
if ( ! (MDOC_IGN_SCOPE & mdoc->pflags)) |
|
return(mdoc_perr(mdoc, line, pos, |
|
"%s scope breaks %s scope of %s", |
|
tt, t, n)); |
|
return(mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX, |
|
"%s scope breaks %s scope of %s", |
|
tt, t, n)); |
|
} |
|
|
|
|
|
/* |
|
* 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(nerr(mdoc, n, EOPEN)); |
|
} |
|
|
|
return(rew_last(mdoc, mdoc->first)); |
|
} |
|
|
|
static int |
|
lookup(struct mdoc *mdoc, int line, int pos, int from, const char *p) |
|
{ |
|
int res; |
|
|
|
res = mdoc_tokhash_find(mdoc->htab, p); |
|
if (MDOC_PARSED & mdoc_macros[from].flags) |
|
return(res); |
|
if (MDOC_MAX == res) |
|
return(res); |
|
if ( ! pwarn(mdoc, line, pos, WMACPARM)) |
|
return(-1); |
|
return(MDOC_MAX); |
|
} |
|
|
|
|
|
static int |
|
rew_last(struct mdoc *mdoc, struct mdoc_node *to) |
|
{ |
|
|
|
assert(to); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
|
|
/* LINTED */ |
|
while (mdoc->last != to) { |
|
if ( ! mdoc_valid_post(mdoc)) |
|
return(0); |
|
if ( ! mdoc_action_post(mdoc)) |
|
return(0); |
|
mdoc->last = mdoc->last->parent; |
|
assert(mdoc->last); |
|
} |
|
|
|
if ( ! mdoc_valid_post(mdoc)) |
|
return(0); |
|
return(mdoc_action_post(mdoc)); |
|
} |
|
|
|
|
|
static int |
|
rew_alt(int tok) |
|
{ |
|
switch (tok) { |
|
case (MDOC_Ac): |
|
return(MDOC_Ao); |
|
case (MDOC_Bc): |
|
return(MDOC_Bo); |
|
case (MDOC_Brc): |
|
return(MDOC_Bro); |
|
case (MDOC_Dc): |
|
return(MDOC_Do); |
|
case (MDOC_Ec): |
|
return(MDOC_Eo); |
|
case (MDOC_Ed): |
|
return(MDOC_Bd); |
|
case (MDOC_Ef): |
|
return(MDOC_Bf); |
|
case (MDOC_Ek): |
|
return(MDOC_Bk); |
|
case (MDOC_El): |
|
return(MDOC_Bl); |
|
case (MDOC_Fc): |
|
return(MDOC_Fo); |
|
case (MDOC_Oc): |
|
return(MDOC_Oo); |
|
case (MDOC_Pc): |
|
return(MDOC_Po); |
|
case (MDOC_Qc): |
|
return(MDOC_Qo); |
|
case (MDOC_Re): |
|
return(MDOC_Rs); |
|
case (MDOC_Sc): |
|
return(MDOC_So); |
|
case (MDOC_Xc): |
|
return(MDOC_Xo); |
|
default: |
|
break; |
|
} |
|
abort(); |
|
/* NOTREACHED */ |
|
} |
|
|
|
|
|
static int |
|
rew_dohalt(int tok, enum mdoc_type type, const struct mdoc_node *p) |
|
{ |
|
|
|
if (MDOC_ROOT == p->type) |
|
return(REWIND_HALT); |
|
if (MDOC_VALID & p->flags) |
|
return(REWIND_NOHALT); |
|
|
|
switch (tok) { |
|
/* One-liner implicit-scope. */ |
|
case (MDOC_Aq): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Bq): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Brq): |
|
/* FALLTHROUGH */ |
|
case (MDOC_D1): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Dl): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Dq): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Op): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Pq): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ql): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Qq): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Sq): |
|
assert(MDOC_HEAD != type); |
|
assert(MDOC_TAIL != type); |
|
if (type == p->type && tok == p->tok) |
|
return(REWIND_REWIND); |
|
break; |
|
|
|
/* Multi-line implicit-scope. */ |
|
case (MDOC_It): |
|
assert(MDOC_TAIL != type); |
|
if (type == p->type && tok == p->tok) |
|
return(REWIND_REWIND); |
|
if (MDOC_BODY == p->type && MDOC_Bl == p->tok) |
|
return(REWIND_HALT); |
|
break; |
|
case (MDOC_Sh): |
|
if (type == p->type && tok == p->tok) |
|
return(REWIND_REWIND); |
|
break; |
|
case (MDOC_Ss): |
|
assert(MDOC_TAIL != type); |
|
if (type == p->type && tok == p->tok) |
|
return(REWIND_REWIND); |
|
if (MDOC_BODY == p->type && MDOC_Sh == p->tok) |
|
return(REWIND_HALT); |
|
break; |
|
|
|
/* Multi-line explicit scope start. */ |
|
case (MDOC_Ao): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Bd): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Bf): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Bk): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Bl): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Bo): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Bro): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Do): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Eo): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Fo): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Oo): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Po): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Qo): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Rs): |
|
/* FALLTHROUGH */ |
|
case (MDOC_So): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Xo): |
|
if (type == p->type && tok == p->tok) |
|
return(REWIND_REWIND); |
|
break; |
|
|
|
/* Multi-line explicit scope close. */ |
|
case (MDOC_Ac): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Bc): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Brc): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Dc): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ec): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ed): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ek): |
|
/* FALLTHROUGH */ |
|
case (MDOC_El): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Fc): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ef): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Oc): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Pc): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Qc): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Re): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Sc): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Xc): |
|
if (type == p->type && rew_alt(tok) == p->tok) |
|
return(REWIND_REWIND); |
|
break; |
|
default: |
|
abort(); |
|
/* NOTREACHED */ |
|
} |
|
|
|
return(REWIND_NOHALT); |
|
} |
|
|
|
|
|
static int |
|
rew_dobreak(int tok, const struct mdoc_node *p) |
|
{ |
|
|
|
assert(MDOC_ROOT != p->type); |
|
if (MDOC_ELEM == p->type) |
|
return(1); |
|
if (MDOC_TEXT == p->type) |
|
return(1); |
|
if (MDOC_VALID & p->flags) |
|
return(1); |
|
|
|
switch (tok) { |
|
/* Implicit rules. */ |
|
case (MDOC_It): |
|
return(MDOC_It == p->tok); |
|
case (MDOC_Ss): |
|
return(MDOC_Ss == p->tok); |
|
case (MDOC_Sh): |
|
if (MDOC_Ss == p->tok) |
|
return(1); |
|
return(MDOC_Sh == p->tok); |
|
|
|
/* Extra scope rules. */ |
|
case (MDOC_El): |
|
if (MDOC_It == p->tok) |
|
return(1); |
|
break; |
|
default: |
|
break; |
|
} |
|
|
|
if (MDOC_EXPLICIT & mdoc_macros[tok].flags) |
|
return(p->tok == rew_alt(tok)); |
|
else if (MDOC_BLOCK == p->type) |
|
return(1); |
|
|
|
return(tok == p->tok); |
|
} |
|
|
|
|
|
static int |
|
rew_elem(struct mdoc *mdoc, int tok) |
|
{ |
|
struct mdoc_node *n; |
|
|
|
n = mdoc->last; |
|
if (MDOC_ELEM != n->type) |
|
n = n->parent; |
|
assert(MDOC_ELEM == n->type); |
|
assert(tok == n->tok); |
|
|
|
return(rew_last(mdoc, n)); |
|
} |
|
|
|
|
|
static int |
|
rew_subblock(enum mdoc_type type, struct mdoc *mdoc, |
|
int tok, int line, int ppos) |
|
{ |
|
struct mdoc_node *n; |
|
int c; |
|
|
|
/* LINTED */ |
|
for (n = mdoc->last; n; n = n->parent) { |
|
c = rew_dohalt(tok, type, n); |
|
if (REWIND_HALT == c) |
|
return(1); |
|
if (REWIND_REWIND == c) |
|
break; |
|
else if (rew_dobreak(tok, n)) |
|
continue; |
|
if ( ! swarn(mdoc, type, line, ppos, n)) |
|
return(0); |
|
} |
|
|
|
assert(n); |
|
return(rew_last(mdoc, n)); |
|
} |
|
|
|
|
|
static int |
|
rew_expblock(struct mdoc *mdoc, int tok, int line, int ppos) |
|
{ |
|
struct mdoc_node *n; |
|
int c; |
|
|
|
/* LINTED */ |
|
for (n = mdoc->last; n; n = n->parent) { |
|
c = rew_dohalt(tok, MDOC_BLOCK, n); |
|
if (REWIND_HALT == c) |
|
return(perr(mdoc, line, ppos, ENOCTX)); |
|
if (REWIND_REWIND == c) |
|
break; |
|
else if (rew_dobreak(tok, n)) |
|
continue; |
|
if ( ! swarn(mdoc, MDOC_BLOCK, line, ppos, n)) |
|
return(0); |
|
} |
|
|
|
assert(n); |
|
return(rew_last(mdoc, n)); |
|
} |
|
|
|
|
|
static int |
|
rew_impblock(struct mdoc *mdoc, int tok, int line, int ppos) |
|
{ |
|
struct mdoc_node *n; |
|
int c; |
|
|
|
/* LINTED */ |
|
for (n = mdoc->last; n; n = n->parent) { |
|
c = rew_dohalt(tok, MDOC_BLOCK, n); |
|
if (REWIND_HALT == c) |
|
return(1); |
|
else if (REWIND_REWIND == c) |
|
break; |
|
else if (rew_dobreak(tok, n)) |
|
continue; |
|
if ( ! swarn(mdoc, MDOC_BLOCK, line, ppos, n)) |
|
return(0); |
|
} |
|
|
|
assert(n); |
|
return(rew_last(mdoc, n)); |
|
} |
|
|
|
|
|
static int |
|
append_delims(struct mdoc *mdoc, int line, int *pos, char *buf) |
|
{ |
|
int c, lastarg; |
|
char *p; |
|
|
if (0 == buf[*pos]) |
if (0 == buf[*pos]) |
|
return(1); |
|
|
|
for (;;) { |
|
lastarg = *pos; |
|
c = mdoc_args(mdoc, line, pos, buf, 0, &p); |
|
assert(ARGS_PHRASE != c); |
|
|
|
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; |
|
} |
|
|
|
return(1); |
|
} |
|
|
|
|
|
/* |
|
* Close out block partial/full explicit. |
|
*/ |
|
static int |
|
blk_exp_close(MACRO_PROT_ARGS) |
|
{ |
|
int j, c, lastarg, maxargs, flushed; |
|
char *p; |
|
|
|
switch (tok) { |
|
case (MDOC_Ec): |
|
maxargs = 1; |
|
break; |
|
default: |
|
maxargs = 0; |
|
break; |
|
} |
|
|
|
if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) { |
|
if (0 == buf[*pos]) { |
|
if ( ! rew_subblock(MDOC_BODY, mdoc, |
|
tok, line, ppos)) |
|
return(0); |
|
return(rew_expblock(mdoc, tok, line, ppos)); |
|
} |
|
return(perr(mdoc, line, ppos, ENOPARMS)); |
|
} |
|
|
|
if ( ! rew_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
return(0); |
return(0); |
|
|
if ('\"' == buf[*pos]) { |
if (maxargs > 0) { |
/* Syntax error: quotation marks not allowed. */ |
if ( ! mdoc_tail_alloc(mdoc, line, |
return(-1); |
ppos, rew_alt(tok))) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
} |
} |
|
|
*v = &buf[*pos]; |
for (lastarg = ppos, flushed = j = 0; ; j++) { |
|
lastarg = *pos; |
|
|
while (buf[*pos] && ! isspace(buf[*pos])) |
if (j == maxargs && ! flushed) { |
(*pos)++; |
if ( ! rew_expblock(mdoc, tok, line, ppos)) |
|
return(0); |
|
flushed = 1; |
|
} |
|
|
if (buf[*pos + 1] && '\\' == buf[*pos]) { |
c = mdoc_args(mdoc, line, pos, buf, tok, &p); |
/* Syntax error: escaped whitespace not allowed. */ |
|
return(-1); |
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 ( ! rew_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; |
} |
} |
|
|
buf[i] = 0; |
if ( ! flushed && ! rew_expblock(mdoc, tok, line, ppos)) |
|
return(0); |
|
|
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, line, pos, buf)); |
|
} |
|
|
|
|
|
/* |
|
* In-line macros where reserved words cause scope close-reopen. |
|
*/ |
|
static int |
|
in_line(MACRO_PROT_ARGS) |
|
{ |
|
int la, lastpunct, c, w; |
|
struct mdoc_arg *arg; |
|
char *p; |
|
|
|
for (la = ppos, arg = NULL;; ) { |
|
la = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &arg, pos, buf); |
|
|
|
if (ARGV_WORD == c) { |
|
*pos = la; |
|
break; |
|
} |
|
|
|
if (ARGV_EOLN == c) |
|
break; |
|
if (ARGV_ARG == c) |
|
continue; |
|
|
|
mdoc_argv_free(arg); |
|
return(0); |
|
} |
|
|
|
if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
for (lastpunct = 0;; ) { |
|
la = *pos; |
|
w = mdoc_args(mdoc, line, pos, buf, tok, &p); |
|
|
|
if (ARGS_ERROR == w) |
|
return(0); |
|
if (ARGS_EOLN == w) |
|
break; |
|
if (ARGS_PUNCT == w) |
|
break; |
|
|
|
/* Quoted words shouldn't be looked-up. */ |
|
|
|
c = ARGS_QWORD == w ? MDOC_MAX : |
|
lookup(mdoc, line, la, tok, p); |
|
|
|
/* MDOC_MAX (not a macro) or -1 (error). */ |
|
|
|
if (MDOC_MAX != c && -1 != c) { |
|
if (0 == lastpunct && ! rew_elem(mdoc, tok)) |
|
return(0); |
|
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) |
|
return(0); |
|
|
|
/* Non-quote-enclosed punctuation. */ |
|
|
|
if (ARGS_QWORD != w && mdoc_isdelim(p)) { |
|
if (0 == lastpunct && ! rew_elem(mdoc, tok)) |
|
return(0); |
|
lastpunct = 1; |
|
} else if (lastpunct) { |
|
c = mdoc_elem_alloc(mdoc, line, ppos, tok, arg); |
|
|
|
if (0 == c) |
|
return(0); |
|
|
|
mdoc->next = MDOC_NEXT_CHILD; |
|
lastpunct = 0; |
|
} |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, la, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} |
|
|
|
if (0 == lastpunct && ! rew_elem(mdoc, tok)) |
|
return(0); |
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, line, pos, buf)); |
|
} |
|
|
|
|
|
/* |
|
* Block full-explicit and full-implicit. |
|
*/ |
|
static int |
|
blk_full(MACRO_PROT_ARGS) |
|
{ |
|
int c, lastarg, reopen; |
|
struct mdoc_arg *arg; |
|
char *p; |
|
|
|
if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) { |
|
if ( ! rew_subblock(MDOC_BODY, mdoc, |
|
tok, line, ppos)) |
|
return(0); |
|
if ( ! rew_impblock(mdoc, tok, line, ppos)) |
|
return(0); |
|
} |
|
|
|
for (arg = NULL;; ) { |
|
lastarg = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &arg, pos, buf); |
|
|
|
if (ARGV_WORD == c) { |
|
*pos = lastarg; |
|
break; |
|
} |
|
|
|
if (ARGV_EOLN == c) |
|
break; |
|
if (ARGV_ARG == c) |
|
continue; |
|
|
|
mdoc_argv_free(arg); |
|
return(0); |
|
} |
|
|
|
if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, arg)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
if (0 == buf[*pos]) { |
|
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
if ( ! rew_subblock(MDOC_HEAD, mdoc, |
|
tok, line, ppos)) |
|
return(0); |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
return(1); |
|
} |
|
|
|
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
for (reopen = 0;; ) { |
|
lastarg = *pos; |
|
c = mdoc_args(mdoc, line, pos, buf, tok, &p); |
|
|
|
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_EOLN == c) |
|
break; |
|
if (ARGS_PHRASE == c) { |
|
if (reopen && ! mdoc_head_alloc |
|
(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
/* |
|
* Phrases are self-contained macro phrases used |
|
* in the columnar output of a macro. They need |
|
* special handling. |
|
*/ |
|
if ( ! phrase(mdoc, line, lastarg, buf)) |
|
return(0); |
|
if ( ! rew_subblock(MDOC_HEAD, mdoc, |
|
tok, line, ppos)) |
|
return(0); |
|
|
|
reopen = 1; |
|
continue; |
|
} |
|
|
|
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
|
return(0); |
|
|
|
if (MDOC_MAX == c) { |
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
continue; |
|
} |
|
|
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
|
break; |
|
} |
|
|
|
if (1 == ppos && ! append_delims(mdoc, line, pos, buf)) |
|
return(0); |
|
if ( ! rew_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
|
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
return(1); |
return(1); |
} |
} |
|
|
|
|
/* |
/* |
* Parses the following: |
* Block partial-imnplicit scope. |
* |
|
* .Xx foo bar baz ; foo "bar baz" ; ; |
|
* ^---------- ^---------- |
|
*/ |
*/ |
static int |
static int |
macro_fl(struct rofftree *tree, int tok, int *pos, char *buf) |
blk_part_imp(MACRO_PROT_ARGS) |
{ |
{ |
int i, j, c, first; |
int lastarg, c; |
char *args[ROFF_MAXLINEARG]; |
char *p; |
|
|
first = *pos == 0; |
if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
for (j = 0; ; ) { |
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
i = *pos; |
return(0); |
c = macro_args_next(tree, *i, buf, args[j]); |
mdoc->next = MDOC_NEXT_SIBLING; |
if (-1 == c) |
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
/* XXX - no known argument macros. */ |
|
|
|
for (lastarg = ppos;; ) { |
|
lastarg = *pos; |
|
c = mdoc_args(mdoc, line, pos, buf, tok, &p); |
|
assert(ARGS_PHRASE != c); |
|
|
|
if (ARGS_ERROR == c) |
return(0); |
return(0); |
if (0 == c) |
if (ARGS_PUNCT == c) |
break; |
break; |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
/* Break at the next command. */ |
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; |
|
} |
|
|
if (ROFF_MAX != (c = rofffindcallable(args[pos]))) { |
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
if ( ! macro(tree, tok, argc, argv, i, p)) |
return(0); |
|
break; |
|
} |
|
|
|
if (1 == ppos) { |
|
if ( ! rew_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
|
return(0); |
|
if ( ! append_delims(mdoc, line, pos, buf)) |
|
return(0); |
|
} else if ( ! rew_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
|
return(0); |
|
return(rew_impblock(mdoc, tok, line, ppos)); |
|
} |
|
|
|
|
|
/* |
|
* Block partial-explicit macros. |
|
*/ |
|
static int |
|
blk_part_exp(MACRO_PROT_ARGS) |
|
{ |
|
int lastarg, flushed, j, c, maxargs; |
|
char *p; |
|
|
|
lastarg = ppos; |
|
flushed = 0; |
|
|
|
/* |
|
* Number of arguments (head arguments). Only `Eo' has these, |
|
*/ |
|
|
|
switch (tok) { |
|
case (MDOC_Eo): |
|
maxargs = 1; |
|
break; |
|
default: |
|
maxargs = 0; |
|
break; |
|
} |
|
|
|
if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, NULL)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
if (0 == maxargs) { |
|
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
if ( ! rew_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); |
|
|
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
for (j = 0; ; j++) { |
|
lastarg = *pos; |
|
if (j == maxargs && ! flushed) { |
|
if ( ! rew_subblock(MDOC_HEAD, mdoc, |
|
tok, line, ppos)) |
return(0); |
return(0); |
if ( ! parse(tree, c, pos, args)) |
flushed = 1; |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
return(0); |
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
|
c = mdoc_args(mdoc, line, pos, buf, tok, &p); |
|
assert(ARGS_PHRASE != c); |
|
|
|
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_PUNCT == c) |
break; |
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 ( ! rew_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_macro(mdoc, c, line, lastarg, |
|
pos, buf)) |
|
return(0); |
|
break; |
} |
} |
|
|
/* Continue if we're just words. */ |
if ( ! flushed && mdoc_isdelim(p)) { |
|
if ( ! rew_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 ( ! roffispunct(args[pos])) { |
if ( ! flushed) { |
i++; |
if ( ! rew_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
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, line, pos, buf)); |
|
} |
|
|
|
|
|
/* |
|
* In-line macros where reserved words signal closure of the macro. |
|
* Macros also have a fixed number of arguments. |
|
*/ |
|
static int |
|
in_line_argn(MACRO_PROT_ARGS) |
|
{ |
|
int lastarg, flushed, j, c, maxargs; |
|
struct mdoc_arg *arg; |
|
char *p; |
|
|
|
|
|
/* |
|
* Fixed maximum arguments per macro. Some of these have none |
|
* and close as soon as the invocation is parsed. |
|
*/ |
|
|
|
switch (tok) { |
|
case (MDOC_Ap): |
|
/* FALLTHROUGH */ |
|
case (MDOC_No): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ns): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ux): |
|
maxargs = 0; |
|
break; |
|
default: |
|
maxargs = 1; |
|
break; |
|
} |
|
|
|
for (lastarg = ppos, arg = NULL;; ) { |
|
lastarg = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &arg, pos, buf); |
|
|
|
if (ARGV_WORD == c) { |
|
*pos = lastarg; |
|
break; |
|
} |
|
|
|
if (ARGV_EOLN == c) |
|
break; |
|
if (ARGV_ARG == c) |
continue; |
continue; |
|
|
|
mdoc_argv_free(arg); |
|
return(0); |
|
} |
|
|
|
if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
for (flushed = j = 0; ; j++) { |
|
lastarg = *pos; |
|
|
|
if (j == maxargs && ! flushed) { |
|
if ( ! rew_elem(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
} |
} |
|
|
/* Break if there's only remaining punctuation. */ |
c = mdoc_args(mdoc, line, pos, buf, tok, &p); |
|
|
if (args[pos + 1] && roffispunct(args[pos + 1])) |
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_PUNCT == c) |
break; |
break; |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
/* If there are remaining words, start anew. */ |
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
|
return(0); |
|
else if (MDOC_MAX != c) { |
|
if ( ! flushed && ! rew_elem(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
|
break; |
|
} |
|
|
if ( ! macro(tree, tok, argc, argv, i, p)) |
if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) && |
|
! flushed && mdoc_isdelim(p)) { |
|
if ( ! rew_elem(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
|
} |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
return(0); |
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} |
|
|
/* Spit out the punctuation. */ |
if ( ! flushed && ! rew_elem(mdoc, tok)) |
|
return(0); |
|
|
if ( ! word(tree, tok, *args++)) |
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, line, pos, buf)); |
|
} |
|
|
|
|
|
/* |
|
* In-line macro that spans an entire line. May be callable, but has no |
|
* subsequent parsed arguments. |
|
*/ |
|
static int |
|
in_line_eoln(MACRO_PROT_ARGS) |
|
{ |
|
int c, w, la; |
|
struct mdoc_arg *arg; |
|
char *p; |
|
|
|
assert( ! (MDOC_PARSED & mdoc_macros[tok].flags)); |
|
|
|
arg = NULL; |
|
|
|
for (;;) { |
|
la = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &arg, pos, buf); |
|
|
|
if (ARGV_WORD == c) { |
|
*pos = la; |
|
break; |
|
} |
|
if (ARGV_EOLN == c) |
|
break; |
|
if (ARGV_ARG == c) |
|
continue; |
|
|
|
mdoc_argv_free(arg); |
|
return(0); |
|
} |
|
|
|
if ( ! mdoc_elem_alloc(mdoc, line, ppos, tok, arg)) |
|
return(0); |
|
|
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
for (;;) { |
|
la = *pos; |
|
w = mdoc_args(mdoc, line, pos, buf, tok, &p); |
|
|
|
if (ARGS_ERROR == w) |
return(0); |
return(0); |
i++; |
if (ARGS_EOLN == w) |
|
break; |
|
|
|
c = ARGS_QWORD == w ? MDOC_MAX : |
|
lookup(mdoc, line, la, tok, p); |
|
|
|
if (MDOC_MAX != c && -1 != c) { |
|
if ( ! rew_elem(mdoc, tok)) |
|
return(0); |
|
return(mdoc_macro(mdoc, c, line, la, pos, buf)); |
|
} else if (-1 == c) |
|
return(0); |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, la, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
} |
} |
|
|
|
return(rew_elem(mdoc, tok)); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
static int |
|
obsolete(MACRO_PROT_ARGS) |
|
{ |
|
|
|
return(pwarn(mdoc, line, ppos, WOBS)); |
|
} |
|
|
|
|
|
static int |
|
phrase(struct mdoc *mdoc, int line, int ppos, char *buf) |
|
{ |
|
int i, la, c, quoted; |
|
|
|
/* |
|
* Parse over words in a phrase. We have to handle this |
|
* specially because we assume no calling context -- in normal |
|
* circumstances, we switch argument parsing based on whether |
|
* the parent macro accepts quotes, tabs, etc. Here, anything |
|
* goes. |
|
*/ |
|
|
|
for (i = ppos; buf[i]; ) { |
|
assert(' ' != buf[i]); |
|
la = i; |
|
quoted = 0; |
|
|
|
/* |
|
* Read to next token. If quoted (check not escaped), |
|
* scan ahead to next unescaped quote. If not quoted or |
|
* escape-quoted, then scan ahead to next space. |
|
*/ |
|
|
|
if ((i && '\"' == buf[i] && '\\' != buf[i - 1]) || |
|
(0 == i && '\"' == buf[i])) { |
|
for (la = ++i; buf[i]; i++) |
|
if ('\"' != buf[i]) |
|
continue; |
|
else if ('\\' != buf[i - 1]) |
|
break; |
|
if (0 == buf[i]) |
|
return(perr(mdoc, line, la, EQUOT)); |
|
quoted = 1; |
|
} else |
|
for ( ; buf[i]; i++) |
|
if (i && ' ' == buf[i]) { |
|
if ('\\' != buf[i - 1]) |
|
break; |
|
} else if (' ' == buf[i]) |
|
break; |
|
|
|
/* If not end-of-line, terminate argument. */ |
|
|
|
if (buf[i]) |
|
buf[i++] = 0; |
|
|
|
/* Read to next argument. */ |
|
|
|
for ( ; buf[i] && ' ' == buf[i]; i++) |
|
/* Spin. */ ; |
|
|
|
/* |
|
* If we're a non-quoted string, try to look up the |
|
* value as a macro and execute it, if found. |
|
*/ |
|
|
|
c = quoted ? MDOC_MAX : |
|
mdoc_tokhash_find(mdoc->htab, &buf[la]); |
|
|
|
if (MDOC_MAX != c) { |
|
if ( ! mdoc_macro(mdoc, c, line, la, &i, buf)) |
|
return(0); |
|
return(append_delims(mdoc, line, &i, buf)); |
|
} |
|
|
|
/* A regular word or quoted string. */ |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, la, &buf[la])) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} |
|
|
|
return(1); |
} |
} |