version 1.43, 2017/06/16 20:01:06 |
version 1.53, 2020/01/11 20:48:18 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2011, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2011,2015,2017,2018,2019 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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#include <assert.h> |
#include <assert.h> |
#include <ctype.h> |
#include <ctype.h> |
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#include <stdint.h> |
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#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <time.h> |
#include <time.h> |
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#include "mandoc.h" |
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#include "mandoc_aux.h" |
#include "mandoc_aux.h" |
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#include "mandoc.h" |
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#include "tbl.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
#include "libroff.h" |
#include "tbl_int.h" |
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static void getdata(struct tbl_node *, struct tbl_span *, |
static void getdata(struct tbl_node *, struct tbl_span *, |
int, const char *, int *); |
int, const char *, int *); |
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getdata(struct tbl_node *tbl, struct tbl_span *dp, |
getdata(struct tbl_node *tbl, struct tbl_span *dp, |
int ln, const char *p, int *pos) |
int ln, const char *p, int *pos) |
{ |
{ |
struct tbl_dat *dat; |
struct tbl_dat *dat, *pdat; |
struct tbl_cell *cp; |
struct tbl_cell *cp; |
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struct tbl_span *pdp; |
int sv; |
int sv; |
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/* |
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* Determine the length of the string in the cell |
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* and advance the parse point to the end of the cell. |
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*/ |
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sv = *pos; |
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while (p[*pos] != '\0' && p[*pos] != tbl->opts.tab) |
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(*pos)++; |
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/* Advance to the next layout cell, skipping spanners. */ |
/* Advance to the next layout cell, skipping spanners. */ |
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cp = dp->last == NULL ? dp->layout->first : dp->last->layout->next; |
cp = dp->last == NULL ? dp->layout->first : dp->last->layout->next; |
Line 61 getdata(struct tbl_node *tbl, struct tbl_span *dp, |
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Line 74 getdata(struct tbl_node *tbl, struct tbl_span *dp, |
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if (dp->layout->last->col + 1 < dp->opts->cols) { |
if (dp->layout->last->col + 1 < dp->opts->cols) { |
cp = mandoc_calloc(1, sizeof(*cp)); |
cp = mandoc_calloc(1, sizeof(*cp)); |
cp->pos = TBL_CELL_LEFT; |
cp->pos = TBL_CELL_LEFT; |
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cp->spacing = SIZE_MAX; |
dp->layout->last->next = cp; |
dp->layout->last->next = cp; |
cp->col = dp->layout->last->col + 1; |
cp->col = dp->layout->last->col + 1; |
dp->layout->last = cp; |
dp->layout->last = cp; |
} else { |
} else { |
mandoc_msg(MANDOCERR_TBLDATA_EXTRA, tbl->parse, |
mandoc_msg(MANDOCERR_TBLDATA_EXTRA, |
ln, *pos, p + *pos); |
ln, sv, "%s", p + sv); |
while (p[*pos]) |
while (p[*pos] != '\0') |
(*pos)++; |
(*pos)++; |
return; |
return; |
} |
} |
} |
} |
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dat = mandoc_calloc(1, sizeof(*dat)); |
dat = mandoc_malloc(sizeof(*dat)); |
dat->layout = cp; |
dat->layout = cp; |
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dat->next = NULL; |
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dat->string = NULL; |
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dat->hspans = 0; |
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dat->vspans = 0; |
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dat->block = 0; |
dat->pos = TBL_DATA_NONE; |
dat->pos = TBL_DATA_NONE; |
dat->spans = 0; |
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/* |
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* Increment the number of vertical spans in a data cell above, |
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* if this cell vertically extends one or more cells above. |
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* The iteration must be done over data rows, |
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* not over layout rows, because one layout row |
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* can be reused for more than one data row. |
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*/ |
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if (cp->pos == TBL_CELL_DOWN || |
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(*pos - sv == 2 && p[sv] == '\\' && p[sv + 1] == '^')) { |
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pdp = dp; |
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while ((pdp = pdp->prev) != NULL) { |
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pdat = pdp->first; |
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while (pdat != NULL && |
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pdat->layout->col < dat->layout->col) |
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pdat = pdat->next; |
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if (pdat == NULL) |
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break; |
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if (pdat->layout->pos != TBL_CELL_DOWN && |
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strcmp(pdat->string, "\\^") != 0) { |
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pdat->vspans++; |
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break; |
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} |
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} |
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} |
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/* |
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* Count the number of horizontal spans to the right of this cell. |
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* This is purely a matter of the layout, independent of the data. |
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*/ |
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for (cp = cp->next; cp != NULL; cp = cp->next) |
for (cp = cp->next; cp != NULL; cp = cp->next) |
if (cp->pos == TBL_CELL_SPAN) |
if (cp->pos == TBL_CELL_SPAN) |
dat->spans++; |
dat->hspans++; |
else |
else |
break; |
break; |
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/* Append the new data cell to the data row. */ |
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if (dp->last == NULL) |
if (dp->last == NULL) |
dp->first = dat; |
dp->first = dat; |
else |
else |
dp->last->next = dat; |
dp->last->next = dat; |
dp->last = dat; |
dp->last = dat; |
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sv = *pos; |
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while (p[*pos] && p[*pos] != tbl->opts.tab) |
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(*pos)++; |
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/* |
/* |
* Check for a continued-data scope opening. This consists of a |
* Check for a continued-data scope opening. This consists of a |
* trailing `T{' at the end of the line. Subsequent lines, |
* trailing `T{' at the end of the line. Subsequent lines, |
Line 106 getdata(struct tbl_node *tbl, struct tbl_span *dp, |
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Line 154 getdata(struct tbl_node *tbl, struct tbl_span *dp, |
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dat->string = mandoc_strndup(p + sv, *pos - sv); |
dat->string = mandoc_strndup(p + sv, *pos - sv); |
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if (p[*pos]) |
if (p[*pos] != '\0') |
(*pos)++; |
(*pos)++; |
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if ( ! strcmp(dat->string, "_")) |
if ( ! strcmp(dat->string, "_")) |
Line 125 getdata(struct tbl_node *tbl, struct tbl_span *dp, |
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Line 173 getdata(struct tbl_node *tbl, struct tbl_span *dp, |
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dat->layout->pos == TBL_CELL_DOWN) && |
dat->layout->pos == TBL_CELL_DOWN) && |
dat->pos == TBL_DATA_DATA && *dat->string != '\0') |
dat->pos == TBL_DATA_DATA && *dat->string != '\0') |
mandoc_msg(MANDOCERR_TBLDATA_SPAN, |
mandoc_msg(MANDOCERR_TBLDATA_SPAN, |
tbl->parse, ln, sv, dat->string); |
ln, sv, "%s", dat->string); |
} |
} |
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int |
void |
tbl_cdata(struct tbl_node *tbl, int ln, const char *p, int pos) |
tbl_cdata(struct tbl_node *tbl, int ln, const char *p, int pos) |
{ |
{ |
struct tbl_dat *dat; |
struct tbl_dat *dat; |
Line 143 tbl_cdata(struct tbl_node *tbl, int ln, const char *p, |
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Line 191 tbl_cdata(struct tbl_node *tbl, int ln, const char *p, |
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pos++; |
pos++; |
while (p[pos] != '\0') |
while (p[pos] != '\0') |
getdata(tbl, tbl->last_span, ln, p, &pos); |
getdata(tbl, tbl->last_span, ln, p, &pos); |
return 1; |
return; |
} else if (p[pos] == '\0') { |
} else if (p[pos] == '\0') { |
tbl->part = TBL_PART_DATA; |
tbl->part = TBL_PART_DATA; |
return 1; |
return; |
} |
} |
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/* Fallthrough: T} is part of a word. */ |
/* Fallthrough: T} is part of a word. */ |
Line 164 tbl_cdata(struct tbl_node *tbl, int ln, const char *p, |
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Line 212 tbl_cdata(struct tbl_node *tbl, int ln, const char *p, |
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dat->string = mandoc_strdup(p + pos); |
dat->string = mandoc_strdup(p + pos); |
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if (dat->layout->pos == TBL_CELL_DOWN) |
if (dat->layout->pos == TBL_CELL_DOWN) |
mandoc_msg(MANDOCERR_TBLDATA_SPAN, tbl->parse, |
mandoc_msg(MANDOCERR_TBLDATA_SPAN, |
ln, pos, dat->string); |
ln, pos, "%s", dat->string); |
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return 0; |
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} |
} |
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static struct tbl_span * |
static struct tbl_span * |
Line 196 tbl_data(struct tbl_node *tbl, int ln, const char *p, |
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Line 242 tbl_data(struct tbl_node *tbl, int ln, const char *p, |
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{ |
{ |
struct tbl_row *rp; |
struct tbl_row *rp; |
struct tbl_cell *cp; |
struct tbl_cell *cp; |
struct tbl_span *sp, *spi; |
struct tbl_span *sp; |
struct tbl_dat *dp; |
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int have_data, spans; |
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rp = (sp = tbl->last_span) == NULL ? tbl->first_row : |
rp = (sp = tbl->last_span) == NULL ? tbl->first_row : |
sp->pos == TBL_SPAN_DATA && sp->layout->next != NULL ? |
sp->pos == TBL_SPAN_DATA && sp->layout->next != NULL ? |
Line 206 tbl_data(struct tbl_node *tbl, int ln, const char *p, |
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Line 250 tbl_data(struct tbl_node *tbl, int ln, const char *p, |
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assert(rp != NULL); |
assert(rp != NULL); |
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sp = newspan(tbl, ln, rp); |
if (p[1] == '\0') { |
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switch (p[0]) { |
if ( ! strcmp(p, "_")) { |
case '.': |
sp->pos = TBL_SPAN_HORIZ; |
/* |
return; |
* Empty request lines must be handled here |
} else if ( ! strcmp(p, "=")) { |
* and cannot be discarded in roff_parseln() |
sp->pos = TBL_SPAN_DHORIZ; |
* because in the layout section, they |
return; |
* are significant and end the layout. |
} |
*/ |
sp->pos = TBL_SPAN_DATA; |
return; |
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case '_': |
while (p[pos] != '\0') |
sp = newspan(tbl, ln, rp); |
getdata(tbl, sp, ln, p, &pos); |
sp->pos = TBL_SPAN_HORIZ; |
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return; |
/* |
case '=': |
* If this span contains some data, |
sp = newspan(tbl, ln, rp); |
* make sure at least part of it gets printed. |
sp->pos = TBL_SPAN_DHORIZ; |
*/ |
return; |
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default: |
have_data = 0; |
break; |
cp = rp->first; |
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for (dp = sp->first; dp != NULL; dp = dp->next) { |
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if (dp->pos == TBL_DATA_DATA && *dp->string != '\0') { |
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if (cp == NULL || |
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(cp->pos != TBL_CELL_HORIZ && |
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cp->pos != TBL_CELL_DHORIZ)) |
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return; |
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have_data = 1; |
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} |
} |
spans = dp->spans; |
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while (spans-- >= 0) { |
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if (cp != NULL) |
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cp = cp->next; |
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} |
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} |
} |
if (have_data == 0 || rp->next == NULL) |
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return; |
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/* |
/* |
* There is some data, but it would all get lost |
* If the layout row contains nothing but horizontal lines, |
* due to horizontal lines in the layout. |
* allocate an empty span for it and assign the current span |
* Insert an empty span to consume the layout row. |
* to the next layout row accepting data. |
*/ |
*/ |
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tbl->last_span = sp->prev; |
while (rp->next != NULL) { |
spi = newspan(tbl, ln, rp); |
if (rp->last->col + 1 < tbl->opts.cols) |
spi->pos = TBL_SPAN_DATA; |
break; |
spi->next = sp; |
for (cp = rp->first; cp != NULL; cp = cp->next) |
tbl->last_span = sp; |
if (cp->pos != TBL_CELL_HORIZ && |
sp->prev = spi; |
cp->pos != TBL_CELL_DHORIZ) |
sp->layout = rp->next; |
break; |
cp = sp->layout->first; |
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for (dp = sp->first; dp != NULL; dp = dp->next) { |
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dp->layout = cp; |
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dp->spans = 0; |
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if (cp != NULL) |
if (cp != NULL) |
cp = cp->next; |
break; |
while (cp != NULL && cp->pos == TBL_CELL_SPAN) { |
sp = newspan(tbl, ln, rp); |
dp->spans++; |
sp->pos = TBL_SPAN_DATA; |
cp = cp->next; |
rp = rp->next; |
} |
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} |
} |
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/* Process a real data row. */ |
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sp = newspan(tbl, ln, rp); |
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sp->pos = TBL_SPAN_DATA; |
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while (p[pos] != '\0') |
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getdata(tbl, sp, ln, p, &pos); |
} |
} |