version 1.26, 2009/01/22 14:56:21 |
version 1.32, 2009/02/26 14:56:27 |
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#include "private.h" |
#include "private.h" |
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/* |
/* |
* Parse arguments and parameters of macros. Arguments follow the |
* Routines to parse arguments of macros. Arguments follow the syntax |
* syntax of `-arg [val [valN...]]', while parameters are free-form text |
* of `-arg [val [valN...]]'. Arguments come in all types: quoted |
* following arguments (if any). This file must correctly handle the |
* arguments, multiple arguments per value, no-value arguments, etc. |
* strange punctuation rules dictated by groff. |
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*/ |
*/ |
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#define ARGS_QUOTED (1 << 0) |
#define ARGS_QUOTED (1 << 0) |
#define ARGS_DELIM (1 << 1) |
#define ARGS_DELIM (1 << 1) |
#define ARGS_TABSEP (1 << 2) |
#define ARGS_TABSEP (1 << 2) |
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static int lookup(int, const char *); |
static int argv_a2arg(int, const char *); |
static int args(struct mdoc *, int, int *, |
static int args(struct mdoc *, int, int *, |
char *, int, char **); |
char *, int, char **); |
static int argv(struct mdoc *, int, |
static int argv(struct mdoc *, int, |
Line 45 static int argv_single(struct mdoc *, int, |
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Line 44 static int argv_single(struct mdoc *, int, |
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struct mdoc_arg *, int *, char *); |
struct mdoc_arg *, int *, char *); |
static int argv_multi(struct mdoc *, int, |
static int argv_multi(struct mdoc *, int, |
struct mdoc_arg *, int *, char *); |
struct mdoc_arg *, int *, char *); |
static int postargv(struct mdoc *, int, |
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const struct mdoc_arg *, int); |
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static int pwarn(struct mdoc *, int, int, int); |
static int pwarn(struct mdoc *, int, int, int); |
static int perr(struct mdoc *, int, int, int); |
static int perr(struct mdoc *, int, int, int); |
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Line 60 static int perr(struct mdoc *, int, int, int); |
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Line 57 static int perr(struct mdoc *, int, int, int); |
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/* Error messages. */ |
/* Error messages. */ |
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#define EQUOTTERM (0) |
#define EQUOTTERM (0) |
#define EOFFSET (1) |
#define EARGVAL (1) |
#define EARGVAL (2) |
#define EARGMANY (2) |
#define EARGMANY (3) |
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static int mdoc_argflags[MDOC_MAX] = { |
static int mdoc_argflags[MDOC_MAX] = { |
0, /* \" */ |
0, /* \" */ |
Line 78 static int mdoc_argflags[MDOC_MAX] = { |
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Line 74 static int mdoc_argflags[MDOC_MAX] = { |
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0, /* Ed */ |
0, /* Ed */ |
0, /* Bl */ |
0, /* Bl */ |
0, /* El */ |
0, /* El */ |
ARGS_DELIM, /* It */ |
0, /* It */ |
ARGS_DELIM, /* Ad */ |
ARGS_DELIM, /* Ad */ |
ARGS_DELIM, /* An */ |
ARGS_DELIM, /* An */ |
ARGS_DELIM, /* Ar */ |
ARGS_DELIM, /* Ar */ |
Line 184 perr(struct mdoc *mdoc, int line, int pos, int code) |
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Line 180 perr(struct mdoc *mdoc, int line, int pos, int code) |
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c = mdoc_perr(mdoc, line, pos, |
c = mdoc_perr(mdoc, line, pos, |
"unterminated quoted parameter"); |
"unterminated quoted parameter"); |
break; |
break; |
case (EOFFSET): |
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c = mdoc_perr(mdoc, line, pos, |
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"invalid value for offset argument"); |
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break; |
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case (EARGVAL): |
case (EARGVAL): |
c = mdoc_perr(mdoc, line, pos, |
c = mdoc_perr(mdoc, line, pos, |
"argument requires a value"); |
"argument requires a value"); |
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args(struct mdoc *mdoc, int line, |
args(struct mdoc *mdoc, int line, |
int *pos, char *buf, int fl, char **v) |
int *pos, char *buf, int fl, char **v) |
{ |
{ |
int i, c; |
int i; |
char *p, *pp; |
char *p, *pp; |
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assert(*pos > 0); |
assert(*pos > 0); |
Line 298 args(struct mdoc *mdoc, int line, |
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Line 290 args(struct mdoc *mdoc, int line, |
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*/ |
*/ |
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if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) { |
if ((fl & ARGS_DELIM) && mdoc_iscdelim(buf[*pos])) { |
for (i = *pos; (c = buf[i]); ) { |
for (i = *pos; buf[i]; ) { |
if ( ! mdoc_iscdelim(c)) |
if ( ! mdoc_iscdelim(buf[i])) |
break; |
break; |
i++; |
i++; |
if (0 == buf[i] || ! isspace(c)) |
while (buf[i] && isspace((int)buf[i])) |
break; |
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i++; |
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while (buf[i] && isspace(c)) |
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i++; |
i++; |
} |
} |
if (0 == buf[i]) { |
if (0 == buf[i]) { |
Line 412 args(struct mdoc *mdoc, int line, |
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Line 401 args(struct mdoc *mdoc, int line, |
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/* Do non-tabsep look-ahead here. */ |
/* Do non-tabsep look-ahead here. */ |
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if ( ! (ARGS_TABSEP & fl)) |
if ( ! (ARGS_TABSEP & fl)) |
while ((c = buf[*pos])) { |
while (buf[*pos]) { |
if (isspace(c)) |
if (isspace((int)buf[*pos])) |
if ('\\' != buf[*pos - 1]) |
if ('\\' != buf[*pos - 1]) |
break; |
break; |
(*pos)++; |
(*pos)++; |
Line 474 args(struct mdoc *mdoc, int line, |
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Line 463 args(struct mdoc *mdoc, int line, |
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static int |
static int |
lookup(int tok, const char *argv) |
argv_a2arg(int tok, const char *argv) |
{ |
{ |
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switch (tok) { |
switch (tok) { |
Line 638 lookup(int tok, const char *argv) |
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Line 627 lookup(int tok, const char *argv) |
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static int |
static int |
postargv(struct mdoc *mdoc, int line, const struct mdoc_arg *v, int pos) |
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{ |
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switch (v->arg) { |
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case (MDOC_Offset): |
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assert(v->value); |
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assert(v->value[0]); |
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if (xstrcmp(v->value[0], "left")) |
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break; |
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if (xstrcmp(v->value[0], "right")) |
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break; |
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if (xstrcmp(v->value[0], "center")) |
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break; |
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if (xstrcmp(v->value[0], "indent")) |
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break; |
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if (xstrcmp(v->value[0], "indent-two")) |
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break; |
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return(perr(mdoc, line, pos, EOFFSET)); |
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default: |
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break; |
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} |
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return(1); |
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} |
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static int |
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argv_multi(struct mdoc *mdoc, int line, |
argv_multi(struct mdoc *mdoc, int line, |
struct mdoc_arg *v, int *pos, char *buf) |
struct mdoc_arg *v, int *pos, char *buf) |
{ |
{ |
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mdoc_argv(struct mdoc *mdoc, int line, int tok, |
mdoc_argv(struct mdoc *mdoc, int line, int tok, |
struct mdoc_arg *v, int *pos, char *buf) |
struct mdoc_arg *v, int *pos, char *buf) |
{ |
{ |
int i, ppos; |
int i; |
char *p; |
char *p; |
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(void)memset(v, 0, sizeof(struct mdoc_arg)); |
(void)memset(v, 0, sizeof(struct mdoc_arg)); |
Line 782 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
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Line 744 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
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if (buf[*pos]) |
if (buf[*pos]) |
buf[(*pos)++] = 0; |
buf[(*pos)++] = 0; |
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if (MDOC_ARG_MAX == (v->arg = lookup(tok, p))) { |
if (MDOC_ARG_MAX == (v->arg = argv_a2arg(tok, p))) { |
if ( ! pwarn(mdoc, line, i, WARGVPARM)) |
if ( ! pwarn(mdoc, line, i, WARGVPARM)) |
return(ARGV_ERROR); |
return(ARGV_ERROR); |
return(ARGV_WORD); |
return(ARGV_WORD); |
Line 793 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
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Line 755 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
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/* FIXME: whitespace if no value. */ |
/* FIXME: whitespace if no value. */ |
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ppos = *pos; |
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if ( ! argv(mdoc, line, v, pos, buf)) |
if ( ! argv(mdoc, line, v, pos, buf)) |
return(ARGV_ERROR); |
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if ( ! postargv(mdoc, line, v, ppos)) |
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return(ARGV_ERROR); |
return(ARGV_ERROR); |
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return(ARGV_ARG); |
return(ARGV_ARG); |