version 1.25, 2009/01/22 12:21:03 |
version 1.34, 2009/02/28 12:16:02 |
|
|
#include "private.h" |
#include "private.h" |
|
|
/* |
/* |
* 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. |
|
*/ |
*/ |
|
|
#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) |
|
|
static int lookup(int, const char *); |
static int argv_a2arg(int, const char *); |
static int parse(struct mdoc *, int, |
static int args(struct mdoc *, int, int *, |
|
char *, int, char **); |
|
static int argv(struct mdoc *, int, |
struct mdoc_arg *, int *, char *); |
struct mdoc_arg *, int *, char *); |
static int parse_single(struct mdoc *, int, |
static int argv_single(struct mdoc *, int, |
struct mdoc_arg *, int *, char *); |
struct mdoc_arg *, int *, char *); |
static int parse_multi(struct mdoc *, int, |
static int argv_multi(struct mdoc *, int, |
struct mdoc_arg *, int *, char *); |
struct mdoc_arg *, int *, char *); |
static int postparse(struct mdoc *, int, |
|
const struct mdoc_arg *, int); |
|
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); |
|
|
|
/* Warning messages. */ |
|
|
#define WQUOTPARM (0) |
#define WQUOTPARM (0) |
#define WARGVPARM (1) |
#define WARGVPARM (1) |
#define WCOLEMPTY (2) |
#define WCOLEMPTY (2) |
#define WTAILWS (3) |
#define WTAILWS (3) |
|
|
|
/* Error messages. */ |
|
|
#define EQUOTTERM (0) |
#define EQUOTTERM (0) |
#define EOFFSET (1) |
#define EARGVAL (1) |
#define EARGVAL (2) |
#define EARGMANY (2) |
#define EARGMANY (3) |
|
|
|
static int mdoc_argflags[MDOC_MAX] = { |
static int mdoc_argflags[MDOC_MAX] = { |
0, /* \" */ |
0, /* \" */ |
Line 72 static int mdoc_argflags[MDOC_MAX] = { |
|
Line 74 static int mdoc_argflags[MDOC_MAX] = { |
|
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 178 perr(struct mdoc *mdoc, int line, int pos, int code) |
|
Line 180 perr(struct mdoc *mdoc, int line, int pos, int code) |
|
c = mdoc_perr(mdoc, line, pos, |
c = mdoc_perr(mdoc, line, pos, |
"unterminated quoted parameter"); |
"unterminated quoted parameter"); |
break; |
break; |
case (EOFFSET): |
|
c = mdoc_perr(mdoc, line, pos, |
|
"invalid value for offset argument"); |
|
break; |
|
case (EARGVAL): |
case (EARGVAL): |
c = mdoc_perr(mdoc, line, pos, |
c = mdoc_perr(mdoc, line, pos, |
"argument requires a value"); |
"argument requires a value"); |
|
|
mdoc_args(struct mdoc *mdoc, int line, |
mdoc_args(struct mdoc *mdoc, int line, |
int *pos, char *buf, int tok, char **v) |
int *pos, char *buf, int tok, char **v) |
{ |
{ |
int i, c, fl; |
int fl, c, i; |
char *p, *pp; |
|
struct mdoc_node *n; |
struct mdoc_node *n; |
|
|
assert(*pos > 0); |
|
|
|
if (0 == buf[*pos]) |
|
return(ARGS_EOLN); |
|
|
|
fl = (0 == tok) ? 0 : mdoc_argflags[tok]; |
fl = (0 == tok) ? 0 : mdoc_argflags[tok]; |
|
|
if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED)) |
|
if ( ! pwarn(mdoc, line, *pos, WQUOTPARM)) |
|
return(ARGS_ERROR); |
|
|
|
if ('-' == buf[*pos]) |
|
if ( ! pwarn(mdoc, line, *pos, WARGVPARM)) |
|
return(ARGS_ERROR); |
|
|
|
/* |
/* |
* First see if we should use TABSEP (Bl -column). This |
* First see if we should use TABSEP (Bl -column). This |
* invalidates the use of ARGS_DELIM. |
* invalidates the use of ARGS_DELIM. |
Line 264 mdoc_args(struct mdoc *mdoc, int line, |
|
Line 248 mdoc_args(struct mdoc *mdoc, int line, |
|
assert(n); |
assert(n); |
c = (int)n->data.block.argc; |
c = (int)n->data.block.argc; |
assert(c > 0); |
assert(c > 0); |
|
|
|
/* LINTED */ |
for (i = 0; i < c; i++) { |
for (i = 0; i < c; i++) { |
if (MDOC_Column != n->data.block.argv[i].arg) |
if (MDOC_Column != n->data.block.argv[i].arg) |
continue; |
continue; |
fl |= ARGS_TABSEP; |
fl |= ARGS_TABSEP; |
fl &= ~ARGS_DELIM; |
fl &= ~ARGS_DELIM; |
|
break; |
} |
} |
} |
} |
|
|
|
return(args(mdoc, line, pos, buf, fl, v)); |
|
} |
|
|
|
|
|
static int |
|
args(struct mdoc *mdoc, int line, |
|
int *pos, char *buf, int fl, char **v) |
|
{ |
|
int i; |
|
char *p, *pp; |
|
|
|
assert(*pos > 0); |
|
|
|
if (0 == buf[*pos]) |
|
return(ARGS_EOLN); |
|
|
|
if ('\"' == buf[*pos] && ! (fl & ARGS_QUOTED)) |
|
if ( ! pwarn(mdoc, line, *pos, WQUOTPARM)) |
|
return(ARGS_ERROR); |
|
|
|
if ('-' == buf[*pos]) |
|
if ( ! pwarn(mdoc, line, *pos, WARGVPARM)) |
|
return(ARGS_ERROR); |
|
|
/* |
/* |
* If the first character is a delimiter and we're to look for |
* If the first character is a delimiter and we're to look for |
* delimited strings, then pass down the buffer seeing if it |
* delimited strings, then pass down the buffer seeing if it |
Line 279 mdoc_args(struct mdoc *mdoc, int line, |
|
Line 290 mdoc_args(struct mdoc *mdoc, int line, |
|
*/ |
*/ |
|
|
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)) |
/* There must be at least one space... */ |
|
if (0 == buf[i] || ! isspace((int)buf[i])) |
break; |
break; |
i++; |
i++; |
while (buf[i] && isspace(c)) |
while (buf[i] && isspace((int)buf[i])) |
i++; |
i++; |
} |
} |
if (0 == buf[i]) { |
if (0 == buf[i]) { |
Line 364 mdoc_args(struct mdoc *mdoc, int line, |
|
Line 376 mdoc_args(struct mdoc *mdoc, int line, |
|
p++; |
p++; |
if (0 != *p) |
if (0 != *p) |
*(p - 1) = 0; |
*(p - 1) = 0; |
*pos += p - *v; |
*pos += (int)(p - *v); |
} |
} |
|
|
if (p && 0 == *p) |
if (p && 0 == *p) |
Line 374 mdoc_args(struct mdoc *mdoc, int line, |
|
Line 386 mdoc_args(struct mdoc *mdoc, int line, |
|
if ( ! pwarn(mdoc, line, *pos, WTAILWS)) |
if ( ! pwarn(mdoc, line, *pos, WTAILWS)) |
return(0); |
return(0); |
|
|
|
if (p) |
|
return(ARGS_WORD); |
|
|
/* Configure the eoln case, too. */ |
/* Configure the eoln case, too. */ |
|
|
if (NULL == p) { |
p = strchr(*v, 0); |
p = strchr(*v, 0); |
assert(p); |
assert(p); |
|
|
|
if (p > *v && ' ' == *(p - 1)) |
if (p > *v && ' ' == *(p - 1)) |
if ( ! pwarn(mdoc, line, *pos, WTAILWS)) |
if ( ! pwarn(mdoc, line, *pos, WTAILWS)) |
return(0); |
return(0); |
*pos += p - *v; |
*pos += (int)(p - *v); |
} |
|
|
|
return(ARGS_WORD); |
return(ARGS_WORD); |
} |
} |
Line 392 mdoc_args(struct mdoc *mdoc, int line, |
|
Line 405 mdoc_args(struct mdoc *mdoc, int line, |
|
/* Do non-tabsep look-ahead here. */ |
/* Do non-tabsep look-ahead here. */ |
|
|
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 454 mdoc_args(struct mdoc *mdoc, int line, |
|
Line 467 mdoc_args(struct mdoc *mdoc, int line, |
|
|
|
|
|
static int |
static int |
lookup(int tok, const char *argv) |
argv_a2arg(int tok, const char *argv) |
{ |
{ |
|
|
switch (tok) { |
switch (tok) { |
Line 618 lookup(int tok, const char *argv) |
|
Line 631 lookup(int tok, const char *argv) |
|
|
|
|
|
static int |
static int |
postparse(struct mdoc *mdoc, int line, const struct mdoc_arg *v, int pos) |
argv_multi(struct mdoc *mdoc, int line, |
{ |
|
|
|
switch (v->arg) { |
|
case (MDOC_Offset): |
|
assert(v->value); |
|
assert(v->value[0]); |
|
if (xstrcmp(v->value[0], "left")) |
|
break; |
|
if (xstrcmp(v->value[0], "right")) |
|
break; |
|
if (xstrcmp(v->value[0], "center")) |
|
break; |
|
if (xstrcmp(v->value[0], "indent")) |
|
break; |
|
if (xstrcmp(v->value[0], "indent-two")) |
|
break; |
|
return(perr(mdoc, line, pos, EOFFSET)); |
|
default: |
|
break; |
|
} |
|
|
|
return(1); |
|
} |
|
|
|
|
|
static int |
|
parse_multi(struct mdoc *mdoc, int line, |
|
struct mdoc_arg *v, int *pos, char *buf) |
struct mdoc_arg *v, int *pos, char *buf) |
{ |
{ |
int c, ppos; |
int c, ppos; |
Line 659 parse_multi(struct mdoc *mdoc, int line, |
|
Line 645 parse_multi(struct mdoc *mdoc, int line, |
|
for (v->sz = 0; v->sz < MDOC_LINEARG_MAX; v->sz++) { |
for (v->sz = 0; v->sz < MDOC_LINEARG_MAX; v->sz++) { |
if ('-' == buf[*pos]) |
if ('-' == buf[*pos]) |
break; |
break; |
c = mdoc_args(mdoc, line, pos, buf, ARGS_QUOTED, &p); |
c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p); |
if (ARGS_ERROR == c) { |
if (ARGS_ERROR == c) { |
free(v->value); |
free(v->value); |
return(0); |
return(0); |
} else if (ARGS_EOLN == c) |
} else if (ARGS_EOLN == c) |
break; |
break; |
v->value[v->sz] = p; |
v->value[(int)v->sz] = p; |
} |
} |
|
|
if (0 < v->sz && v->sz < MDOC_LINEARG_MAX) |
if (0 < v->sz && v->sz < MDOC_LINEARG_MAX) |
Line 680 parse_multi(struct mdoc *mdoc, int line, |
|
Line 666 parse_multi(struct mdoc *mdoc, int line, |
|
|
|
|
|
static int |
static int |
parse_single(struct mdoc *mdoc, int line, |
argv_single(struct mdoc *mdoc, int line, |
struct mdoc_arg *v, int *pos, char *buf) |
struct mdoc_arg *v, int *pos, char *buf) |
{ |
{ |
int c, ppos; |
int c, ppos; |
Line 688 parse_single(struct mdoc *mdoc, int line, |
|
Line 674 parse_single(struct mdoc *mdoc, int line, |
|
|
|
ppos = *pos; |
ppos = *pos; |
|
|
c = mdoc_args(mdoc, line, pos, buf, ARGS_QUOTED, &p); |
c = args(mdoc, line, pos, buf, ARGS_QUOTED, &p); |
if (ARGS_ERROR == c) |
if (ARGS_ERROR == c) |
return(0); |
return(0); |
if (ARGS_EOLN == c) |
if (ARGS_EOLN == c) |
Line 702 parse_single(struct mdoc *mdoc, int line, |
|
Line 688 parse_single(struct mdoc *mdoc, int line, |
|
|
|
|
|
static int |
static int |
parse(struct mdoc *mdoc, int line, |
argv(struct mdoc *mdoc, int line, |
struct mdoc_arg *v, int *pos, char *buf) |
struct mdoc_arg *v, int *pos, char *buf) |
{ |
{ |
|
|
Line 715 parse(struct mdoc *mdoc, int line, |
|
Line 701 parse(struct mdoc *mdoc, int line, |
|
case(MDOC_Width): |
case(MDOC_Width): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case(MDOC_Offset): |
case(MDOC_Offset): |
return(parse_single(mdoc, line, v, pos, buf)); |
return(argv_single(mdoc, line, v, pos, buf)); |
case(MDOC_Column): |
case(MDOC_Column): |
return(parse_multi(mdoc, line, v, pos, buf)); |
return(argv_multi(mdoc, line, v, pos, buf)); |
default: |
default: |
break; |
break; |
} |
} |
|
|
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 *argv; |
char *p; |
|
|
(void)memset(v, 0, sizeof(struct mdoc_arg)); |
(void)memset(v, 0, sizeof(struct mdoc_arg)); |
|
|
Line 744 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
|
Line 730 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
|
return(ARGV_WORD); |
return(ARGV_WORD); |
|
|
i = *pos; |
i = *pos; |
argv = &buf[++(*pos)]; |
p = &buf[++(*pos)]; |
|
|
v->line = line; |
v->line = line; |
v->pos = *pos; |
v->pos = *pos; |
|
|
assert(*pos > 0); |
assert(*pos > 0); |
|
|
|
/* LINTED */ |
while (buf[*pos]) { |
while (buf[*pos]) { |
if (isspace((int)buf[*pos])) |
if (isspace((int)buf[*pos])) |
if ('\\' != buf[*pos - 1]) |
if ('\\' != buf[*pos - 1]) |
Line 760 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
|
Line 748 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
|
if (buf[*pos]) |
if (buf[*pos]) |
buf[(*pos)++] = 0; |
buf[(*pos)++] = 0; |
|
|
if (MDOC_ARG_MAX == (v->arg = lookup(tok, argv))) { |
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 771 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
|
Line 759 mdoc_argv(struct mdoc *mdoc, int line, int tok, |
|
|
|
/* FIXME: whitespace if no value. */ |
/* FIXME: whitespace if no value. */ |
|
|
ppos = *pos; |
if ( ! argv(mdoc, line, v, pos, buf)) |
if ( ! parse(mdoc, line, v, pos, buf)) |
|
return(ARGV_ERROR); |
|
if ( ! postparse(mdoc, line, v, ppos)) |
|
return(ARGV_ERROR); |
return(ARGV_ERROR); |
|
|
return(ARGV_ARG); |
return(ARGV_ARG); |