version 1.1, 2010/12/28 10:51:03 |
version 1.19, 2011/01/02 20:34:05 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> |
* |
* |
* 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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* 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 <assert.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 "libmandoc.h" |
#include "libmandoc.h" |
#include "libroff.h" |
#include "libroff.h" |
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enum tbl_part { |
static void tbl_calc(struct tbl_node *); |
TBL_PART_OPTS, /* in options (first line) */ |
static void tbl_calc_data(struct tbl_node *, struct tbl_dat *); |
TBL_PART_LAYOUT, /* describing layout */ |
static void tbl_calc_data_literal(struct tbl_dat *); |
TBL_PART_DATA /* creating data rows */ |
static void tbl_calc_data_number(struct tbl_node *, struct tbl_dat *); |
}; |
static void tbl_calc_data_spanner(struct tbl_dat *); |
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enum rofferr |
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tbl_read(struct tbl_node *tbl, int ln, const char *p, int offs) |
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{ |
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int len; |
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const char *cp; |
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struct tbl { |
cp = &p[offs]; |
enum tbl_part part; |
len = (int)strlen(cp); |
}; |
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static void tbl_init(struct tbl *); |
/* |
static void tbl_clear(struct tbl *); |
* If we're in the options section and we don't have a |
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* terminating semicolon, assume we've moved directly into the |
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* layout section. No need to report a warning: this is, |
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* apparently, standard behaviour. |
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*/ |
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static void |
if (TBL_PART_OPTS == tbl->part && len) |
tbl_clear(struct tbl *tbl) |
if (';' != cp[len - 1]) |
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tbl->part = TBL_PART_LAYOUT; |
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/* Now process each logical section of the table. */ |
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switch (tbl->part) { |
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case (TBL_PART_OPTS): |
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return(tbl_option(tbl, ln, p) ? ROFF_IGN : ROFF_ERR); |
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case (TBL_PART_LAYOUT): |
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return(tbl_layout(tbl, ln, p) ? ROFF_IGN : ROFF_ERR); |
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case (TBL_PART_DATA): |
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break; |
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} |
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/* |
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* This only returns zero if the line is empty, so we ignore it |
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* and continue on. |
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*/ |
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return(tbl_data(tbl, ln, p) ? ROFF_TBL : ROFF_IGN); |
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} |
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struct tbl_node * |
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tbl_alloc(int pos, int line, void *data, const mandocmsg msg) |
{ |
{ |
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struct tbl_node *p; |
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p = mandoc_calloc(1, sizeof(struct tbl_node)); |
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p->line = line; |
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p->pos = pos; |
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p->data = data; |
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p->msg = msg; |
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p->part = TBL_PART_OPTS; |
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p->opts.tab = '\t'; |
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p->opts.linesize = 12; |
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p->opts.decimal = '.'; |
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return(p); |
} |
} |
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static void |
void |
tbl_init(struct tbl *tbl) |
tbl_free(struct tbl_node *p) |
{ |
{ |
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struct tbl_row *rp; |
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struct tbl_cell *cp; |
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struct tbl_span *sp; |
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struct tbl_dat *dp; |
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struct tbl_head *hp; |
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tbl->part = TBL_PART_OPTS; |
while (NULL != (rp = p->first_row)) { |
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p->first_row = rp->next; |
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while (rp->first) { |
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cp = rp->first; |
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rp->first = cp->next; |
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free(cp); |
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} |
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free(rp); |
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} |
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while (NULL != (sp = p->first_span)) { |
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p->first_span = sp->next; |
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while (sp->first) { |
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dp = sp->first; |
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sp->first = dp->next; |
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if (dp->string) |
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free(dp->string); |
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free(dp); |
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} |
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free(sp); |
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} |
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while (NULL != (hp = p->first_head)) { |
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p->first_head = hp->next; |
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free(hp); |
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} |
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free(p); |
} |
} |
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enum rofferr |
void |
tbl_read(struct tbl *tbl, int ln, const char *p, int offs) |
tbl_restart(int line, int pos, struct tbl_node *tbl) |
{ |
{ |
int len; |
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const char *cp; |
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cp = &p[offs]; |
tbl->part = TBL_PART_LAYOUT; |
len = (int)strlen(cp); |
tbl->line = line; |
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tbl->pos = pos; |
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if (len && TBL_PART_OPTS == tbl->part) |
if (NULL == tbl->first_span || NULL == tbl->first_span->first) |
if (';' != cp[len - 1]) |
TBL_MSG(tbl, MANDOCERR_TBLNODATA, tbl->line, tbl->pos); |
tbl->part = TBL_PART_LAYOUT; |
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return(1); |
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} |
} |
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struct tbl * |
const struct tbl_span * |
tbl_alloc(void) |
tbl_span(const struct tbl_node *tbl) |
{ |
{ |
struct tbl *p; |
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p = mandoc_malloc(sizeof(struct tbl)); |
assert(tbl); |
tbl_init(p); |
return(tbl->last_span); |
return(p); |
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} |
} |
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void |
void |
tbl_free(struct tbl *p) |
tbl_end(struct tbl_node *tbl) |
{ |
{ |
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tbl_clear(p); |
if (NULL == tbl->first_span || NULL == tbl->first_span->first) |
free(p); |
TBL_MSG(tbl, MANDOCERR_TBLNODATA, tbl->line, tbl->pos); |
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else |
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tbl_calc(tbl); |
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if (tbl->last_span) |
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tbl->last_span->flags |= TBL_SPAN_LAST; |
} |
} |
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void |
static void |
tbl_reset(struct tbl *tbl) |
tbl_calc(struct tbl_node *tbl) |
{ |
{ |
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struct tbl_span *sp; |
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struct tbl_dat *dp; |
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struct tbl_head *hp; |
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tbl_clear(tbl); |
/* Calculate width as the max of column cells' widths. */ |
tbl_init(tbl); |
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for (sp = tbl->first_span; sp; sp = sp->next) { |
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switch (sp->pos) { |
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case (TBL_DATA_HORIZ): |
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/* FALLTHROUGH */ |
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case (TBL_DATA_DHORIZ): |
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continue; |
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default: |
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break; |
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} |
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for (dp = sp->first; dp; dp = dp->next) |
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tbl_calc_data(tbl, dp); |
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} |
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/* Calculate width as the simple spanner value. */ |
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for (hp = tbl->first_head; hp; hp = hp->next) |
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switch (hp->pos) { |
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case (TBL_HEAD_VERT): |
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hp->width = 1; |
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break; |
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case (TBL_HEAD_DVERT): |
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hp->width = 2; |
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break; |
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default: |
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break; |
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} |
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} |
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static void |
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tbl_calc_data(struct tbl_node *tbl, struct tbl_dat *data) |
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{ |
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if (NULL == data->layout) |
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return; |
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/* Branch down into data sub-types. */ |
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switch (data->layout->pos) { |
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case (TBL_CELL_HORIZ): |
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/* FALLTHROUGH */ |
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case (TBL_CELL_DHORIZ): |
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tbl_calc_data_spanner(data); |
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break; |
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case (TBL_CELL_LONG): |
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/* FALLTHROUGH */ |
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case (TBL_CELL_CENTRE): |
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/* FALLTHROUGH */ |
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case (TBL_CELL_LEFT): |
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/* FALLTHROUGH */ |
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case (TBL_CELL_RIGHT): |
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tbl_calc_data_literal(data); |
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break; |
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case (TBL_CELL_NUMBER): |
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tbl_calc_data_number(tbl, data); |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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} |
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static void |
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tbl_calc_data_spanner(struct tbl_dat *data) |
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{ |
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/* N.B., these are horiz spanners (not vert) so always 1. */ |
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data->layout->head->width = 1; |
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} |
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static void |
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tbl_calc_data_number(struct tbl_node *tbl, struct tbl_dat *data) |
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{ |
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int sz, d; |
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char *dp, pnt; |
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/* |
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* First calculate number width and decimal place (last + 1 for |
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* no-decimal numbers). If the stored decimal is subsequent |
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* ours, make our size longer by that difference |
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* (right-"shifting"); similarly, if ours is subsequent the |
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* stored, then extend the stored size by the difference. |
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* Finally, re-assign the stored values. |
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*/ |
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/* TODO: use spacing modifier. */ |
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assert(data->string); |
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sz = (int)strlen(data->string); |
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pnt = tbl->opts.decimal; |
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if (NULL == (dp = strchr(data->string, pnt))) |
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d = sz + 1; |
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else |
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d = (int)(dp - data->string) + 1; |
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sz += 2; |
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if (data->layout->head->decimal > d) { |
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sz += data->layout->head->decimal - d; |
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d = data->layout->head->decimal; |
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} else |
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data->layout->head->width += |
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d - data->layout->head->decimal; |
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if (sz > data->layout->head->width) |
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data->layout->head->width = sz; |
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if (d > data->layout->head->decimal) |
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data->layout->head->decimal = d; |
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} |
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static void |
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tbl_calc_data_literal(struct tbl_dat *data) |
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{ |
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int sz, bufsz; |
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/* |
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* Calculate our width and use the spacing, with a minimum |
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* spacing dictated by position (centre, e.g,. gets a space on |
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* either side, while right/left get a single adjacent space). |
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*/ |
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assert(data->string); |
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sz = (int)strlen(data->string); |
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switch (data->layout->pos) { |
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case (TBL_CELL_LONG): |
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/* FALLTHROUGH */ |
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case (TBL_CELL_CENTRE): |
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bufsz = 2; |
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break; |
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default: |
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bufsz = 1; |
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break; |
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} |
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if (data->layout->spacing) |
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bufsz = bufsz > data->layout->spacing ? |
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bufsz : data->layout->spacing; |
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sz += bufsz; |
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if (data->layout->head->width < sz) |
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data->layout->head->width = sz; |
} |
} |