version 1.2, 2010/12/29 15:21:34 |
version 1.32, 2015/01/26 18:42:30 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
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* Copyright (c) 2012, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
* purpose with or without fee is hereby granted, provided that the above |
* purpose with or without fee is hereby granted, provided that the above |
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
#include <assert.h> |
#include "config.h" |
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#include <sys/types.h> |
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#include <ctype.h> |
#include <ctype.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
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#include <time.h> |
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#include "mandoc.h" |
#include "mandoc.h" |
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#include "mandoc_aux.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
#include "libroff.h" |
#include "libroff.h" |
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Line 28 struct tbl_phrase { |
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Line 34 struct tbl_phrase { |
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enum tbl_cellt key; |
enum tbl_cellt key; |
}; |
}; |
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#define KEYS_MAX 11 |
static const struct tbl_phrase keys[] = { |
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static const struct tbl_phrase keys[KEYS_MAX] = { |
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{ 'c', TBL_CELL_CENTRE }, |
{ 'c', TBL_CELL_CENTRE }, |
{ 'r', TBL_CELL_RIGHT }, |
{ 'r', TBL_CELL_RIGHT }, |
{ 'l', TBL_CELL_LEFT }, |
{ 'l', TBL_CELL_LEFT }, |
Line 40 static const struct tbl_phrase keys[KEYS_MAX] = { |
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Line 44 static const struct tbl_phrase keys[KEYS_MAX] = { |
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{ '^', TBL_CELL_DOWN }, |
{ '^', TBL_CELL_DOWN }, |
{ '-', TBL_CELL_HORIZ }, |
{ '-', TBL_CELL_HORIZ }, |
{ '_', TBL_CELL_HORIZ }, |
{ '_', TBL_CELL_HORIZ }, |
{ '=', TBL_CELL_DHORIZ }, |
{ '=', TBL_CELL_DHORIZ } |
{ '|', TBL_CELL_VERT } |
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}; |
}; |
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static int mods(struct tbl *, struct tbl_cell *, |
#define KEYS_MAX ((int)(sizeof(keys)/sizeof(keys[0]))) |
int, const char *, int *); |
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static int cell(struct tbl *, struct tbl_row *, |
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int, const char *, int *); |
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static void row(struct tbl *, int, const char *, int *); |
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static int |
static void mods(struct tbl_node *, struct tbl_cell *, |
mods(struct tbl *tbl, struct tbl_cell *cp, |
int, const char *, int *); |
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static void cell(struct tbl_node *, struct tbl_row *, |
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int, const char *, int *); |
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static struct tbl_cell *cell_alloc(struct tbl_node *, struct tbl_row *, |
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enum tbl_cellt, int vert); |
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static void |
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mods(struct tbl_node *tbl, struct tbl_cell *cp, |
int ln, const char *p, int *pos) |
int ln, const char *p, int *pos) |
{ |
{ |
char buf[5]; |
char *endptr; |
int i; |
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mod: |
mod: |
/* |
while (p[*pos] == ' ' || p[*pos] == '\t') |
* XXX: since, at least for now, modifiers are non-conflicting |
(*pos)++; |
* (are separable by value, regardless of position), we let |
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* modifiers come in any order. The existing tbl doesn't let |
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* this happen. |
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*/ |
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switch (p[*pos]) { |
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case ('\0'): |
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/* FALLTHROUGH */ |
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case (' '): |
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/* FALLTHROUGH */ |
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case ('\t'): |
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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); |
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default: |
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break; |
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} |
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/* Parse numerical spacing from modifier string. */ |
/* Row delimiters and cell specifiers end modifier lists. */ |
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if (isdigit((unsigned char)p[*pos])) { |
if (strchr(".,-=^_ACLNRSaclnrs|", p[*pos]) != NULL) |
for (i = 0; i < 4; i++) { |
return; |
if ( ! isdigit((unsigned char)p[*pos + i])) |
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break; |
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buf[i] = p[*pos + i]; |
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} |
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buf[i] = '\0'; |
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/* No greater than 4 digits. */ |
/* Throw away parenthesised expression. */ |
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if (4 == i) { |
if ('(' == p[*pos]) { |
TBL_MSG(tbl, MANDOCERR_TBLLAYOUT, ln, *pos); |
(*pos)++; |
return(0); |
while (p[*pos] && ')' != p[*pos]) |
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(*pos)++; |
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if (')' == p[*pos]) { |
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(*pos)++; |
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goto mod; |
} |
} |
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mandoc_msg(MANDOCERR_TBLLAYOUT_PAR, tbl->parse, |
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ln, *pos, NULL); |
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return; |
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} |
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*pos += i; |
/* Parse numerical spacing from modifier string. */ |
cp->spacing = atoi(buf); |
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if (isdigit((unsigned char)p[*pos])) { |
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cp->spacing = strtoull(p + *pos, &endptr, 10); |
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*pos = endptr - p; |
goto mod; |
goto mod; |
/* NOTREACHED */ |
} |
} |
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/* TODO: GNU has many more extensions. */ |
switch (tolower((unsigned char)p[(*pos)++])) { |
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case 'b': |
switch (tolower(p[(*pos)++])) { |
/* FALLTHROUGH */ |
case ('z'): |
case 'i': |
cp->flags |= TBL_CELL_WIGN; |
/* FALLTHROUGH */ |
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case 'r': |
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(*pos)--; |
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break; |
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case 'd': |
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cp->flags |= TBL_CELL_BALIGN; |
goto mod; |
goto mod; |
case ('u'): |
case 'e': |
cp->flags |= TBL_CELL_UP; |
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goto mod; |
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case ('e'): |
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cp->flags |= TBL_CELL_EQUAL; |
cp->flags |= TBL_CELL_EQUAL; |
goto mod; |
goto mod; |
case ('t'): |
case 'f': |
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break; |
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case 'm': |
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mandoc_msg(MANDOCERR_TBLLAYOUT_MOD, tbl->parse, |
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ln, *pos, "m"); |
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goto mod; |
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case 'p': |
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/* FALLTHROUGH */ |
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case 'v': |
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if (p[*pos] == '-' || p[*pos] == '+') |
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(*pos)++; |
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while (isdigit((unsigned char)p[*pos])) |
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(*pos)++; |
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goto mod; |
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case 't': |
cp->flags |= TBL_CELL_TALIGN; |
cp->flags |= TBL_CELL_TALIGN; |
goto mod; |
goto mod; |
case ('d'): |
case 'u': |
cp->flags |= TBL_CELL_BALIGN; |
cp->flags |= TBL_CELL_UP; |
goto mod; |
goto mod; |
case ('f'): |
case 'w': /* XXX for now, ignore minimal column width */ |
break; |
goto mod; |
case ('b'): |
case 'x': |
/* FALLTHROUGH */ |
cp->flags |= TBL_CELL_WMAX; |
case ('i'): |
goto mod; |
(*pos)--; |
case 'z': |
break; |
cp->flags |= TBL_CELL_WIGN; |
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goto mod; |
default: |
default: |
TBL_MSG(tbl, MANDOCERR_TBLLAYOUT, ln, *pos - 1); |
mandoc_vmsg(MANDOCERR_TBLLAYOUT_CHAR, tbl->parse, |
return(0); |
ln, *pos - 1, "%c", p[*pos - 1]); |
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goto mod; |
} |
} |
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switch (tolower(p[(*pos)++])) { |
switch (tolower((unsigned char)p[(*pos)++])) { |
case ('b'): |
case '3': |
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/* FALLTHROUGH */ |
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case 'b': |
cp->flags |= TBL_CELL_BOLD; |
cp->flags |= TBL_CELL_BOLD; |
goto mod; |
goto mod; |
case ('i'): |
case '2': |
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/* FALLTHROUGH */ |
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case 'i': |
cp->flags |= TBL_CELL_ITALIC; |
cp->flags |= TBL_CELL_ITALIC; |
goto mod; |
goto mod; |
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case '1': |
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/* FALLTHROUGH */ |
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case 'r': |
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goto mod; |
default: |
default: |
break; |
mandoc_vmsg(MANDOCERR_FT_BAD, tbl->parse, |
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ln, *pos - 1, "TS f%c", p[*pos - 1]); |
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goto mod; |
} |
} |
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TBL_MSG(tbl, MANDOCERR_TBLLAYOUT, ln, *pos - 1); |
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return(0); |
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} |
} |
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static int |
static void |
cell(struct tbl *tbl, struct tbl_row *rp, |
cell(struct tbl_node *tbl, struct tbl_row *rp, |
int ln, const char *p, int *pos) |
int ln, const char *p, int *pos) |
{ |
{ |
struct tbl_cell *cp; |
int vert, i; |
int i; |
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enum tbl_cellt c; |
enum tbl_cellt c; |
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/* Parse the column position (`r', `R', `|', ...). */ |
/* Handle vertical lines. */ |
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for (i = 0; i < KEYS_MAX; i++) |
vert = 0; |
if (tolower(p[*pos]) == keys[i].name) |
again: |
break; |
while (p[*pos] == ' ' || p[*pos] == '\t' || p[*pos] == '|') { |
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if (p[*pos] == '|') { |
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if (vert < 2) |
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vert++; |
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else |
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mandoc_msg(MANDOCERR_TBLLAYOUT_VERT, |
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tbl->parse, ln, *pos, NULL); |
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} |
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(*pos)++; |
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} |
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if (KEYS_MAX == i) { |
/* Handle trailing vertical lines */ |
TBL_MSG(tbl, MANDOCERR_TBLLAYOUT, ln, *pos); |
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return(0); |
if ('.' == p[*pos] || '\0' == p[*pos]) { |
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rp->vert = vert; |
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return; |
} |
} |
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(*pos)++; |
/* Parse the column position (`c', `l', `r', ...). */ |
c = keys[i].key; |
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/* Extra check for the double-vertical. */ |
for (i = 0; i < KEYS_MAX; i++) |
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if (tolower((unsigned char)p[*pos]) == keys[i].name) |
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break; |
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if (TBL_CELL_VERT == c && '|' == p[*pos]) { |
if (i == KEYS_MAX) { |
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mandoc_vmsg(MANDOCERR_TBLLAYOUT_CHAR, tbl->parse, |
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ln, *pos, "%c", p[*pos]); |
(*pos)++; |
(*pos)++; |
c = TBL_CELL_DVERT; |
goto again; |
} |
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/* Disallow adjacent spacers. */ |
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if (rp->last && (TBL_CELL_VERT == c || TBL_CELL_DVERT == c) && |
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(TBL_CELL_VERT == rp->last->pos || |
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TBL_CELL_DVERT == rp->last->pos)) { |
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TBL_MSG(tbl, MANDOCERR_TBLLAYOUT, ln, *pos - 1); |
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return(0); |
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} |
} |
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c = keys[i].key; |
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/* Allocate cell then parse its modifiers. */ |
/* Special cases of spanners. */ |
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cp = mandoc_calloc(1, sizeof(struct tbl_cell)); |
if (c == TBL_CELL_SPAN) { |
cp->pos = c; |
if (rp->last == NULL) |
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mandoc_msg(MANDOCERR_TBLLAYOUT_SPAN, |
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tbl->parse, ln, *pos, NULL); |
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else if (rp->last->pos == TBL_CELL_HORIZ || |
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rp->last->pos == TBL_CELL_DHORIZ) |
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c = rp->last->pos; |
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} else if (c == TBL_CELL_DOWN && rp == tbl->first_row) |
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mandoc_msg(MANDOCERR_TBLLAYOUT_DOWN, |
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tbl->parse, ln, *pos, NULL); |
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if (rp->last) { |
(*pos)++; |
rp->last->next = cp; |
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rp->last = cp; |
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} else |
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rp->last = rp->first = cp; |
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return(mods(tbl, cp, ln, p, pos)); |
/* Allocate cell then parse its modifiers. */ |
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mods(tbl, cell_alloc(tbl, rp, c, vert), ln, p, pos); |
} |
} |
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void |
static void |
tbl_layout(struct tbl_node *tbl, int ln, const char *p) |
row(struct tbl *tbl, int ln, const char *p, int *pos) |
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{ |
{ |
struct tbl_row *rp; |
struct tbl_row *rp; |
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int pos; |
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row: /* |
pos = 0; |
* EBNF describing this section: |
rp = NULL; |
* |
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* row ::= row_list [:space:]* [.]?[\n] |
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* row_list ::= [:space:]* row_elem row_tail |
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* row_tail ::= [:space:]*[,] row_list | |
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* epsilon |
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* row_elem ::= [\t\ ]*[:alpha:]+ |
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*/ |
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rp = mandoc_calloc(1, sizeof(struct tbl_row)); |
for (;;) { |
if (tbl->last) { |
/* Skip whitespace before and after each cell. */ |
tbl->last->next = rp; |
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tbl->last = rp; |
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} else |
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tbl->last = tbl->first = rp; |
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cell: |
while (p[pos] == ' ' || p[pos] == '\t') |
while (isspace((unsigned char)p[*pos])) |
pos++; |
(*pos)++; |
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/* Safely exit layout context. */ |
switch (p[pos]) { |
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case ',': /* Next row on this input line. */ |
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pos++; |
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rp = NULL; |
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continue; |
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case '\0': /* Next row on next input line. */ |
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return; |
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case '.': /* End of layout. */ |
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pos++; |
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tbl->part = TBL_PART_DATA; |
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if (tbl->first_row != NULL) |
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return; |
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mandoc_msg(MANDOCERR_TBLLAYOUT_NONE, |
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tbl->parse, ln, pos, NULL); |
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rp = mandoc_calloc(1, sizeof(*rp)); |
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cell_alloc(tbl, rp, TBL_CELL_LEFT, 0); |
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tbl->first_row = tbl->last_row = rp; |
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return; |
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default: /* Cell. */ |
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break; |
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} |
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if ('.' == p[*pos]) { |
if (rp == NULL) { /* First cell on this line. */ |
tbl->part = TBL_PART_DATA; |
rp = mandoc_calloc(1, sizeof(*rp)); |
if (NULL == tbl->first) |
if (tbl->last_row) |
TBL_MSG(tbl, MANDOCERR_TBLNOLAYOUT, ln, *pos); |
tbl->last_row->next = rp; |
(*pos)++; |
else |
return; |
tbl->first_row = rp; |
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tbl->last_row = rp; |
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} |
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cell(tbl, rp, ln, p, &pos); |
} |
} |
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} |
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/* End (and possibly restart) a row. */ |
static struct tbl_cell * |
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cell_alloc(struct tbl_node *tbl, struct tbl_row *rp, enum tbl_cellt pos, |
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int vert) |
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{ |
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struct tbl_cell *p, *pp; |
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struct tbl_head *h, *hp; |
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if (',' == p[*pos]) { |
p = mandoc_calloc(1, sizeof(struct tbl_cell)); |
(*pos)++; |
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goto row; |
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} else if ('\0' == p[*pos]) |
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return; |
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if ( ! cell(tbl, rp, ln, p, pos)) |
if (NULL != (pp = rp->last)) { |
return; |
pp->next = p; |
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h = pp->head->next; |
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} else { |
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rp->first = p; |
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h = tbl->first_head; |
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} |
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rp->last = p; |
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goto cell; |
p->pos = pos; |
/* NOTREACHED */ |
p->vert = vert; |
} |
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/* Re-use header. */ |
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int |
if (h) { |
tbl_layout(struct tbl *tbl, int ln, const char *p) |
p->head = h; |
{ |
return(p); |
int pos; |
} |
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pos = 0; |
hp = mandoc_calloc(1, sizeof(struct tbl_head)); |
row(tbl, ln, p, &pos); |
hp->ident = tbl->opts.cols++; |
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hp->vert = vert; |
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/* Always succeed. */ |
if (tbl->last_head) { |
return(1); |
hp->prev = tbl->last_head; |
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tbl->last_head->next = hp; |
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} else |
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tbl->first_head = hp; |
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tbl->last_head = hp; |
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p->head = hp; |
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return(p); |
} |
} |