version 1.19, 2009/02/25 12:27:37 |
version 1.26, 2009/02/27 08:20:15 |
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* PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
#include <assert.h> |
#include <assert.h> |
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#include <ctype.h> |
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#include <err.h> |
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#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
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#include "term.h" |
#include "term.h" |
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#define INDENT 4 |
#define INDENT 6 |
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/* |
/* |
* Performs actions on nodes of the abstract syntax tree. Both pre- and |
* Performs actions on nodes of the abstract syntax tree. Both pre- and |
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*/ |
*/ |
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/* FIXME: indent/tab. */ |
/* FIXME: indent/tab. */ |
/* FIXME: handle nested lists. */ |
/* FIXME: macro arguments can be escaped. */ |
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#define TTYPE_PROG 0 |
#define TTYPE_PROG 0 |
#define TTYPE_CMD_FLAG 1 |
#define TTYPE_CMD_FLAG 1 |
Line 148 DECL_PRE(termp_ox); |
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Line 151 DECL_PRE(termp_ox); |
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DECL_PRE(termp_pa); |
DECL_PRE(termp_pa); |
DECL_PRE(termp_pp); |
DECL_PRE(termp_pp); |
DECL_PRE(termp_rv); |
DECL_PRE(termp_rv); |
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DECL_PRE(termp_sm); |
DECL_PRE(termp_st); |
DECL_PRE(termp_st); |
DECL_PRE(termp_sx); |
DECL_PRE(termp_sx); |
DECL_PRE(termp_sy); |
DECL_PRE(termp_sy); |
Line 248 const struct termact __termacts[MDOC_MAX] = { |
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Line 252 const struct termact __termacts[MDOC_MAX] = { |
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{ NULL, NULL }, /* Sc */ |
{ NULL, NULL }, /* Sc */ |
{ termp_sq_pre, termp_sq_post }, /* So */ |
{ termp_sq_pre, termp_sq_post }, /* So */ |
{ termp_sq_pre, termp_sq_post }, /* Sq */ |
{ termp_sq_pre, termp_sq_post }, /* Sq */ |
{ NULL, NULL }, /* Sm */ |
{ termp_sm_pre, NULL }, /* Sm */ |
{ termp_sx_pre, NULL }, /* Sx */ |
{ termp_sx_pre, NULL }, /* Sx */ |
{ termp_sy_pre, NULL }, /* Sy */ |
{ termp_sy_pre, NULL }, /* Sy */ |
{ NULL, NULL }, /* Tn */ |
{ NULL, NULL }, /* Tn */ |
Line 273 const struct termact *termacts = __termacts; |
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Line 277 const struct termact *termacts = __termacts; |
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static size_t |
static size_t |
arg_width(const struct mdoc_arg *arg) |
arg_width(const struct mdoc_arg *arg) |
{ |
{ |
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size_t len, i, v; |
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/* TODO */ |
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assert(*arg->value); |
assert(*arg->value); |
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if (0 == strcmp(*arg->value, "indent")) |
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return(INDENT); |
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if (0 == strcmp(*arg->value, "indent-two")) |
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return(INDENT * 2); |
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len = strlen(*arg->value); |
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assert(len > 0); |
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for (i = 0; i < len - 1; i++) |
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if ( ! isdigit((int)(*arg->value)[i])) |
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break; |
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if (i == len - 1) { |
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if ('n' == (*arg->value)[len - 1]) { |
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v = (size_t)atoi(*arg->value); |
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return(v); |
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} |
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} |
return(strlen(*arg->value)); |
return(strlen(*arg->value)); |
} |
} |
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Line 290 arg_offset(const struct mdoc_arg *arg) |
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Line 313 arg_offset(const struct mdoc_arg *arg) |
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return(INDENT); |
return(INDENT); |
if (0 == strcmp(*arg->value, "indent-two")) |
if (0 == strcmp(*arg->value, "indent-two")) |
return(INDENT * 2); |
return(INDENT * 2); |
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return(strlen(*arg->value)); |
return(strlen(*arg->value)); |
} |
} |
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Line 343 termp_dq_post(DECL_ARGS) |
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Line 365 termp_dq_post(DECL_ARGS) |
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/* ARGSUSED */ |
/* ARGSUSED */ |
static void |
static int |
termp_it_post(DECL_ARGS) |
termp_it_pre(DECL_ARGS) |
{ |
{ |
const struct mdoc_node *n, *it; |
const struct mdoc_node *n, *it; |
const struct mdoc_block *bl; |
const struct mdoc_block *bl; |
int i; |
char buf[7], *tp; |
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int i, type; |
size_t width, offset; |
size_t width, offset; |
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/* |
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* This (and termp_it_pre()) are the most complicated functions |
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* here. They must account for a considerable number of |
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* switches that completely change the output behaviour, like |
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* -tag versus -column. Yech. |
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*/ |
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switch (node->type) { |
switch (node->type) { |
case (MDOC_BODY): |
case (MDOC_BODY): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_HEAD): |
case (MDOC_HEAD): |
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it = node->parent; |
break; |
break; |
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case (MDOC_BLOCK): |
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it = node; |
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break; |
default: |
default: |
return; |
return(1); |
} |
} |
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it = node->parent; |
n = it->parent->parent; |
assert(MDOC_BLOCK == it->type); |
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assert(MDOC_It == it->tok); |
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n = it->parent; |
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assert(MDOC_BODY == n->type); |
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assert(MDOC_Bl == n->tok); |
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n = n->parent; |
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bl = &n->data.block; |
bl = &n->data.block; |
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/* If `-tag', adjust our margins accordingly. */ |
if (MDOC_BLOCK == node->type) { |
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if (arg_hasattr(MDOC_Compact, bl->argc, bl->argv)) |
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newln(p); |
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else |
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vspace(p); |
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return(1); |
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} |
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if (arg_hasattr(MDOC_Tag, bl->argc, bl->argv)) { |
/* Get our list type. */ |
flushln(p); |
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/* FIXME: this should auto-size. */ |
for (type = -1, i = 0; i < (int)bl->argc; i++) |
i = arg_getattr(MDOC_Width, bl->argc, bl->argv); |
switch (bl->argv[i].arg) { |
width = i >= 0 ? arg_width(&bl->argv[i]) : 10; |
case (MDOC_Bullet): |
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/* FALLTHROUGH */ |
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case (MDOC_Dash): |
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/* FALLTHROUGH */ |
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case (MDOC_Enum): |
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/* FALLTHROUGH */ |
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case (MDOC_Hyphen): |
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/* FALLTHROUGH */ |
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case (MDOC_Tag): |
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/* FALLTHROUGH */ |
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case (MDOC_Ohang): |
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type = bl->argv[i].arg; |
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i = (int)bl->argc; |
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break; |
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default: |
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errx(1, "list type not supported"); |
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/* NOTREACHED */ |
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} |
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/* FIXME: nesting! Should happen at block. */ |
assert(-1 != type); |
i = arg_getattr(MDOC_Offset, bl->argc, bl->argv); |
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offset = i >= 0 ? arg_width(&bl->argv[i]) : 0; |
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if (MDOC_HEAD == node->type) { |
/* Save our existing (inherited) margin and offset. */ |
p->rmargin = p->maxrmargin; |
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p->offset -= offset; |
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p->flags &= ~TERMP_NOBREAK; |
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} else { |
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p->offset -= width; |
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p->flags &= ~TERMP_NOLPAD; |
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} |
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} |
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if (arg_hasattr(MDOC_Ohang, bl->argc, bl->argv)) { |
pair->offset = p->offset; |
i = arg_getattr(MDOC_Offset, bl->argc, bl->argv); |
pair->rmargin = p->rmargin; |
offset = i >= 0 ? arg_offset(&bl->argv[i]) : 0; |
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flushln(p); |
/* Get list width and offset. */ |
p->offset -= offset; |
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return; |
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} |
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} |
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i = arg_getattr(MDOC_Width, bl->argc, bl->argv); |
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width = i >= 0 ? arg_width(&bl->argv[i]) : 0; |
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/* ARGSUSED */ |
i = arg_getattr(MDOC_Offset, bl->argc, bl->argv); |
static int |
offset = i >= 0 ? arg_offset(&bl->argv[i]) : 0; |
termp_it_pre(DECL_ARGS) |
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{ |
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const struct mdoc_node *n, *it; |
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const struct mdoc_block *bl; |
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int i; |
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size_t width, offset; |
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/* |
/* Override the width. */ |
* Also see termp_it_post() for general comments. |
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*/ |
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switch (node->type) { |
switch (type) { |
case (MDOC_BODY): |
case (MDOC_Bullet): |
/* FALLTHROUGH */ |
/* FALLTHROUGH */ |
case (MDOC_HEAD): |
case (MDOC_Dash): |
it = node->parent; |
/* FALLTHROUGH */ |
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case (MDOC_Enum): |
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/* FALLTHROUGH */ |
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case (MDOC_Hyphen): |
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width = width > 6 ? width : 6; |
break; |
break; |
case (MDOC_BLOCK): |
case (MDOC_Tag): |
it = node; |
/* FIXME: auto-size. */ |
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if (0 == width) |
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errx(1, "need non-zero -width"); |
break; |
break; |
default: |
default: |
return(1); |
break; |
} |
} |
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assert(MDOC_BLOCK == it->type); |
/* Word-wrap control. */ |
assert(MDOC_It == it->tok); |
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n = it->parent; |
p->flags |= TERMP_NOSPACE; |
assert(MDOC_BODY == n->type); |
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assert(MDOC_Bl == n->tok); |
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n = n->parent; |
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bl = &n->data.block; |
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/* If `-compact', don't assert vertical space. */ |
switch (type) { |
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case (MDOC_Bullet): |
if (MDOC_BLOCK == node->type) { |
/* FALLTHROUGH */ |
if (arg_hasattr(MDOC_Compact, bl->argc, bl->argv)) |
case (MDOC_Dash): |
newln(p); |
/* FALLTHROUGH */ |
else |
case (MDOC_Enum): |
vspace(p); |
/* FALLTHROUGH */ |
return(1); |
case (MDOC_Hyphen): |
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/* FALLTHROUGH */ |
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case (MDOC_Tag): |
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if (MDOC_HEAD == node->type) |
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p->flags |= TERMP_NOBREAK; |
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else if (MDOC_BODY == node->type) |
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p->flags |= TERMP_NOLPAD; |
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break; |
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default: |
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break; |
} |
} |
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assert(MDOC_HEAD == node->type |
/* |
|| MDOC_BODY == node->type); |
* Get a token to use as the HEAD lead-in. If NULL, we use the |
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* HEAD child. |
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*/ |
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/* FIXME: see termp_it_post(). */ |
tp = NULL; |
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/* If `-tag', adjust our margins accordingly. */ |
if (MDOC_HEAD == node->type) { |
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if (arg_hasattr(MDOC_Bullet, bl->argc, bl->argv)) |
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tp = "\\[bu]"; |
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if (arg_hasattr(MDOC_Dash, bl->argc, bl->argv)) |
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tp = "\\-"; |
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if (arg_hasattr(MDOC_Enum, bl->argc, bl->argv)) { |
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(pair->ppair->ppair->count)++; |
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(void)snprintf(buf, sizeof(buf), "%d.", |
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pair->ppair->ppair->count); |
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tp = buf; |
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} |
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if (arg_hasattr(MDOC_Hyphen, bl->argc, bl->argv)) |
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tp = "\\-"; |
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} |
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if (arg_hasattr(MDOC_Tag, bl->argc, bl->argv)) { |
/* Margin control. */ |
p->flags |= TERMP_NOSPACE; |
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i = arg_getattr(MDOC_Width, bl->argc, bl->argv); |
p->offset += offset; |
width = i >= 0 ? arg_width(&bl->argv[i]) : 10; |
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i = arg_getattr(MDOC_Offset, bl->argc, bl->argv); |
switch (type) { |
offset = i >= 0 ? arg_offset(&bl->argv[i]) : 0; |
case (MDOC_Bullet): |
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/* FALLTHROUGH */ |
if (MDOC_HEAD == node->type) { |
case (MDOC_Dash): |
p->flags |= TERMP_NOBREAK; |
/* FALLTHROUGH */ |
p->offset += offset; |
case (MDOC_Enum): |
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/* FALLTHROUGH */ |
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case (MDOC_Hyphen): |
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/* FALLTHROUGH */ |
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case (MDOC_Tag): |
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if (MDOC_HEAD == node->type) |
p->rmargin = p->offset + width; |
p->rmargin = p->offset + width; |
} else { |
else if (MDOC_BODY == node->type) |
p->flags |= TERMP_NOSPACE; |
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p->flags |= TERMP_NOLPAD; |
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p->offset += width; |
p->offset += width; |
} |
break; |
return(1); |
default: |
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break; |
} |
} |
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/* If `-ohang', adjust left-margin. */ |
if (NULL == tp) |
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return(1); |
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if (arg_hasattr(MDOC_Ohang, bl->argc, bl->argv)) { |
word(p, tp); |
i = arg_getattr(MDOC_Offset, bl->argc, bl->argv); |
return(0); |
offset = i >= 0 ? arg_offset(&bl->argv[i]) : 0; |
} |
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p->flags |= TERMP_NOSPACE; |
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p->offset += offset; |
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return(1); |
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} |
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return(1); |
/* ARGSUSED */ |
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static void |
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termp_it_post(DECL_ARGS) |
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{ |
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if (MDOC_BODY != node->type && MDOC_HEAD != node->type) |
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return; |
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flushln(p); |
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p->offset = pair->offset; |
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p->rmargin = pair->rmargin; |
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if (MDOC_HEAD == node->type) { |
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p->flags &= ~TERMP_NOBREAK; |
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p->flags &= ~TERMP_NORPAD; |
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} else if (MDOC_BODY == node->type) |
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p->flags &= ~TERMP_NOLPAD; |
} |
} |
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Line 982 termp_bd_pre(DECL_ARGS) |
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Line 1037 termp_bd_pre(DECL_ARGS) |
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return(1); |
return(1); |
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assert(MDOC_BLOCK == node->parent->type); |
assert(MDOC_BLOCK == node->parent->type); |
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pair->offset = p->offset; |
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bl = &node->parent->data.block; |
bl = &node->parent->data.block; |
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i = arg_getattr(MDOC_Offset, bl->argc, bl->argv); |
i = arg_getattr(MDOC_Offset, bl->argc, bl->argv); |
if (-1 != i) { |
if (-1 != i) { |
assert(1 == bl->argv[i].sz); |
assert(1 == bl->argv[i].sz); |
pair->offset = arg_offset(&bl->argv[i]); |
p->offset += arg_offset(&bl->argv[i]); |
p->offset += pair->offset; |
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} |
} |
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if ( ! arg_hasattr(MDOC_Literal, bl->argc, bl->argv)) |
if ( ! arg_hasattr(MDOC_Literal, bl->argc, bl->argv)) |
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termp_bd_post(DECL_ARGS) |
termp_bd_post(DECL_ARGS) |
{ |
{ |
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if (MDOC_BODY == node->type) |
if (MDOC_BODY != node->type) |
p->offset -= pair->offset; |
return; |
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newln(p); |
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p->offset = pair->offset; |
} |
} |
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Line 1271 termp_bq_pre(DECL_ARGS) |
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Line 1329 termp_bq_pre(DECL_ARGS) |
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if (MDOC_BODY != node->type) |
if (MDOC_BODY != node->type) |
return(1); |
return(1); |
word(p, "["); |
word(p, "\\["); |
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
return(1); |
return(1); |
} |
} |
Line 1295 termp_pq_pre(DECL_ARGS) |
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Line 1353 termp_pq_pre(DECL_ARGS) |
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if (MDOC_BODY != node->type) |
if (MDOC_BODY != node->type) |
return(1); |
return(1); |
word(p, "("); |
word(p, "\\&("); |
p->flags |= TERMP_NOSPACE; |
p->flags |= TERMP_NOSPACE; |
return(1); |
return(1); |
} |
} |
Line 1406 termp_ms_pre(DECL_ARGS) |
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Line 1464 termp_ms_pre(DECL_ARGS) |
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return(1); |
return(1); |
} |
} |
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/* ARGSUSED */ |
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static int |
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termp_sm_pre(DECL_ARGS) |
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{ |
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#if notyet |
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assert(node->child); |
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if (0 == strcmp("off", node->child->data.text.string)) { |
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p->flags &= ~TERMP_NONOSPACE; |
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p->flags &= ~TERMP_NOSPACE; |
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} else { |
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p->flags |= TERMP_NONOSPACE; |
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p->flags |= TERMP_NOSPACE; |
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} |
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#endif |
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return(0); |
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} |