version 1.1, 2008/12/12 10:11:10 |
version 1.20, 2009/01/05 12:23:17 |
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
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#include <assert.h> |
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#include <ctype.h> |
#include <stdlib.h> |
#include <stdlib.h> |
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#include <stdio.h> |
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#include <string.h> |
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#ifdef __linux__ |
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#include <time.h> |
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#endif |
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#include "roff.h" |
#include "private.h" |
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/* FIXME: maxlineargs should be per LINE, no per TOKEN. */ |
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static int rewind_elem(struct mdoc *, int, int); |
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static int rewind_imp(struct mdoc *, int, int); |
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static int rewind_exp(struct mdoc *, int, int, int); |
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static int rewind_line(struct mdoc *, int, int); |
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static int append_delims(struct mdoc *, int, int *, char *); |
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static int |
static int |
macro_args_next(struct rofftree *tree, int *pos, char *buf, char **v) |
rewind_elem(struct mdoc *mdoc, int ppos, int tok) |
{ |
{ |
int i; |
struct mdoc_node *n; |
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n = mdoc->last; |
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if (MDOC_ELEM != n->type) |
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n = n->parent; |
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assert(MDOC_ELEM == n->type); |
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assert(tok == n->data.elem.tok); |
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mdoc->last = n; |
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mdoc->next = MDOC_NEXT_SIBLING; |
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return(mdoc_valid_post(mdoc, tok, ppos)); |
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} |
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static int |
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rewind_line(struct mdoc *mdoc, int ppos, int tok) |
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{ |
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struct mdoc_node *n; |
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int t; |
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/* LINTED */ |
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for (n = mdoc->last; n; n = n->parent) { |
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if (MDOC_HEAD != n->type) |
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continue; |
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if (tok == (t = n->data.head.tok)) |
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break; |
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if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags)) |
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continue; |
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return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK)); |
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} |
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mdoc->last = n ? n : mdoc->last; |
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mdoc->next = MDOC_NEXT_SIBLING; |
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return(1); |
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} |
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static int |
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rewind_exp(struct mdoc *mdoc, int ppos, int tok, int tt) |
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{ |
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struct mdoc_node *n; |
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assert(mdoc->last); |
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/* LINTED */ |
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for (n = mdoc->last->parent; n; n = n->parent) { |
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if (MDOC_BLOCK != n->type) |
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continue; |
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if (tt == n->data.block.tok) |
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break; |
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return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK)); |
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} |
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if (NULL == (mdoc->last = n)) |
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return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_NOCTX)); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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return(mdoc_valid_post(mdoc, tok, ppos)); |
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} |
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/* ARGSUSED */ |
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int |
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macro_close_explicit(MACRO_PROT_ARGS) |
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{ |
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int tt; |
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switch (tok) { |
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case (MDOC_El): |
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tt = MDOC_Bl; |
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break; |
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case (MDOC_Ed): |
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tt = MDOC_Bd; |
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break; |
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case (MDOC_Re): |
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tt = MDOC_Rs; |
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break; |
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case (MDOC_Ef): |
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tt = MDOC_Bf; |
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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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if (0 != buf[*pos]) |
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return(mdoc_err(mdoc, tok, ppos, ERR_ARGS_EQ0)); |
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return(rewind_exp(mdoc, ppos, tok, tt)); |
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} |
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static int |
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rewind_imp(struct mdoc *mdoc, int ppos, int tok) |
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{ |
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struct mdoc_node *n; |
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int t; |
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n = mdoc->last ? mdoc->last->parent : NULL; |
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/* LINTED */ |
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for ( ; n; n = n->parent) { |
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if (MDOC_BLOCK != n->type) |
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continue; |
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if (tok == (t = n->data.block.tok)) |
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break; |
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if ( ! (MDOC_EXPLICIT & mdoc_macros[t].flags)) |
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continue; |
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return(mdoc_err(mdoc, tok, ppos, ERR_SCOPE_BREAK)); |
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} |
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mdoc->last = n ? n : mdoc->last; |
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mdoc->next = MDOC_NEXT_SIBLING; |
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return(1); |
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/*return(mdoc_valid_post(mdoc, tok, ppos));*/ |
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} |
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static int |
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append_delims(struct mdoc *mdoc, int tok, int *pos, char *buf) |
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{ |
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int c, lastarg; |
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char *p; |
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if (0 == buf[*pos]) |
if (0 == buf[*pos]) |
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return(1); |
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for (;;) { |
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lastarg = *pos; |
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c = mdoc_args(mdoc, tok, pos, buf, 0, &p); |
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if (ARGS_ERROR == c) |
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return(0); |
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else if (ARGS_EOLN == c) |
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break; |
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assert(mdoc_isdelim(p)); |
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mdoc_word_alloc(mdoc, lastarg, p); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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} |
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return(1); |
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} |
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/* |
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* A general text domain macro. When invoked, this opens a scope that |
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* accepts words until either end-of-line, only-punctuation, or a |
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* callable macro. If the word is punctuation (not only-punctuation), |
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* then the scope is closed out, the punctuation appended, then the |
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* scope opened again. If any terminating conditions are met, the scope |
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* is closed out. If this is the first macro in the line and |
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* only-punctuation remains, this punctuation is flushed. |
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*/ |
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int |
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macro_text(MACRO_PROT_ARGS) |
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{ |
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int lastarg, lastpunct, c, sz, fl, argc; |
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struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
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char *p; |
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lastarg = ppos; |
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lastpunct = 0; |
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for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
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lastarg = *pos; |
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c = mdoc_argv(mdoc, tok, &argv[argc], pos, buf); |
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if (ARGV_EOLN == c || ARGV_WORD == c) |
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break; |
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else if (ARGV_ARG == c) |
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continue; |
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mdoc_argv_free(argc, argv); |
return(0); |
return(0); |
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} |
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if ('\"' == buf[*pos]) { |
if ( ! mdoc_valid_pre(mdoc, tok, ppos, argc, argv)) { |
/* Syntax error: quotation marks not allowed. */ |
mdoc_argv_free(argc, argv); |
return(-1); |
return(0); |
} |
} |
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*v = &buf[*pos]; |
fl = ARGS_DELIM; |
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if (MDOC_QUOTABLE & mdoc_macros[tok].flags) |
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fl |= ARGS_QUOTED; |
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while (buf[*pos] && ! isspace(buf[*pos])) |
mdoc_elem_alloc(mdoc, lastarg, tok, argc, argv); |
(*pos)++; |
mdoc->next = MDOC_NEXT_CHILD; |
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if (buf[*pos + 1] && '\\' == buf[*pos]) { |
for (lastpunct = sz = 0; sz + argc < MDOC_LINEARG_MAX; sz++) { |
/* Syntax error: escaped whitespace not allowed. */ |
lastarg = *pos; |
return(-1); |
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if (lastpunct) { |
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mdoc_elem_alloc(mdoc, lastarg, tok, argc, argv); |
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mdoc->next = MDOC_NEXT_CHILD; |
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lastpunct = 0; |
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} |
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c = mdoc_args(mdoc, tok, pos, buf, fl, &p); |
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if (ARGS_ERROR == c) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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if (ARGS_EOLN == c) |
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break; |
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if (ARGS_PUNCT == c) |
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break; |
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if (MDOC_MAX != (c = mdoc_find(mdoc, p))) { |
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if ( ! rewind_elem(mdoc, ppos, tok)) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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mdoc_argv_free(argc, argv); |
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if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) |
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return(0); |
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if (ppos > 1) |
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return(1); |
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return(append_delims(mdoc, tok, pos, buf)); |
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} |
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if (mdoc_isdelim(p)) { |
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if ( ! rewind_elem(mdoc, ppos, tok)) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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lastpunct = 1; |
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} |
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mdoc_word_alloc(mdoc, lastarg, p); |
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mdoc->next = MDOC_NEXT_SIBLING; |
} |
} |
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buf[i] = 0; |
mdoc_argv_free(argc, argv); |
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if (sz == MDOC_LINEARG_MAX) |
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return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
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if ( ! rewind_elem(mdoc, ppos, tok)) |
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return(0); |
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if (ppos > 1) |
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return(1); |
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return(append_delims(mdoc, tok, pos, buf)); |
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} |
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/* |
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* Multi-line-scoped macro. |
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*/ |
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int |
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macro_scoped(MACRO_PROT_ARGS) |
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{ |
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int c, lastarg, argc; |
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struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
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assert ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)); |
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if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) |
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if ( ! rewind_imp(mdoc, ppos, tok)) |
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return(0); |
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lastarg = ppos; |
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for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
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lastarg = *pos; |
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c = mdoc_argv(mdoc, tok, &argv[argc], pos, buf); |
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if (ARGV_EOLN == c || ARGV_WORD == c) |
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break; |
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else if (ARGV_ARG == c) |
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continue; |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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if ( ! mdoc_valid_pre(mdoc, tok, ppos, argc, argv)) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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mdoc_block_alloc(mdoc, ppos, tok, (size_t)argc, argv); |
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mdoc->next = MDOC_NEXT_CHILD; |
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mdoc_argv_free(argc, argv); |
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/* XXX - Assumes header isn't parsed! */ |
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if (0 != buf[*pos]) { |
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mdoc_head_alloc(mdoc, ppos, tok); |
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mdoc->next = MDOC_NEXT_CHILD; |
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mdoc_word_alloc(mdoc, lastarg, &buf[*pos]); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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if ( ! rewind_line(mdoc, ppos, tok)) |
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return(0); |
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while (buf[*pos]) |
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(*pos)++; |
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} |
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#if 0 |
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/* Post-processing. */ |
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switch (tok) { |
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case (MDOC_Sh): |
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sec = mdoc_atosec((size_t)sz, _CC(args)); |
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if (SEC_CUSTOM != sec) |
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mdoc->sec_lastn = sec; |
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mdoc->sec_last = sec; |
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break; |
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default: |
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break; |
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} |
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#endif |
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mdoc_body_alloc(mdoc, ppos, tok); |
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mdoc->next = MDOC_NEXT_CHILD; |
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return(1); |
return(1); |
} |
} |
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/* |
/* |
* Parses the following: |
* When scoped to a line, a macro encompasses all of the contents. This |
* |
* differs from constants or text macros, where a new macro will |
* .Xx foo bar baz ; foo "bar baz" ; ; |
* terminate the existing context. |
* ^---------- ^---------- |
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*/ |
*/ |
static int |
int |
macro_fl(struct rofftree *tree, int tok, int *pos, char *buf) |
macro_scoped_line(MACRO_PROT_ARGS) |
{ |
{ |
int i, j, c, first; |
int lastarg, c, j; |
char *args[ROFF_MAXLINEARG]; |
char *p; |
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first = *pos == 0; |
mdoc_block_alloc(mdoc, ppos, tok, 0, NULL); |
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mdoc->next = MDOC_NEXT_CHILD; |
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for (j = 0; ; ) { |
mdoc_head_alloc(mdoc, ppos, tok); |
i = *pos; |
mdoc->next = MDOC_NEXT_CHILD; |
c = macro_args_next(tree, *i, buf, args[j]); |
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if (-1 == c) |
/* XXX - no known argument macros. */ |
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if ( ! mdoc_valid_pre(mdoc, tok, ppos, 0, NULL)) |
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return(0); |
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/* Process line parameters. */ |
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for (lastarg = ppos, j = 0; j < MDOC_LINEARG_MAX; j++) { |
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lastarg = *pos; |
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c = mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p); |
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if (ARGS_ERROR == c) |
return(0); |
return(0); |
if (0 == c) |
if (ARGS_PUNCT == c) |
break; |
break; |
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if (ARGS_EOLN == c) |
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break; |
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/* Break at the next command. */ |
if (MDOC_MAX == (c = mdoc_find(mdoc, p))) { |
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mdoc_word_alloc(mdoc, lastarg, p); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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continue; |
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} |
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if (ROFF_MAX != (c = rofffindcallable(args[pos]))) { |
if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) |
if ( ! macro(tree, tok, argc, argv, i, p)) |
return(0); |
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break; |
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} |
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if (j == MDOC_LINEARG_MAX) |
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return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
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if (1 == ppos) { |
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if ( ! rewind_line(mdoc, ppos, tok)) |
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return(0); |
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if ( ! append_delims(mdoc, tok, pos, buf)) |
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return(0); |
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} |
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return(rewind_imp(mdoc, ppos, tok)); |
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} |
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/* |
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* Delimited macros are like text macros except that, should punctuation |
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* be encountered, the macro isn't re-started with remaining tokens |
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* (it's only emitted once). Delimited macros can have a maximum number |
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* of arguments. |
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*/ |
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int |
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macro_constant_delimited(MACRO_PROT_ARGS) |
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{ |
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int lastarg, flushed, j, c, maxargs; |
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char *p; |
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lastarg = ppos; |
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flushed = 0; |
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switch (tok) { |
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case (MDOC_No): |
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/* FALLTHROUGH */ |
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case (MDOC_Ns): |
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/* FALLTHROUGH */ |
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case (MDOC_Ux): |
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maxargs = 0; |
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break; |
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default: |
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maxargs = 1; |
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break; |
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} |
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mdoc_elem_alloc(mdoc, lastarg, tok, 0, NULL); |
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mdoc->next = MDOC_NEXT_CHILD; |
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for (j = 0; j < MDOC_LINEARG_MAX; j++) { |
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lastarg = *pos; |
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if (j == maxargs && ! flushed) { |
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if ( ! rewind_elem(mdoc, ppos, tok)) |
return(0); |
return(0); |
if ( ! parse(tree, c, pos, args)) |
flushed = 1; |
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} |
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c = mdoc_args(mdoc, tok, pos, buf, ARGS_DELIM, &p); |
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if (ARGS_ERROR == c) |
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return(0); |
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if (ARGS_PUNCT == c) |
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break; |
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if (ARGS_EOLN == c) |
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break; |
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if (MDOC_MAX != (c = mdoc_find(mdoc, p))) { |
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if ( ! flushed && ! rewind_elem(mdoc, ppos, tok)) |
return(0); |
return(0); |
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flushed = 1; |
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if ( ! mdoc_macro(mdoc, c, lastarg, pos, buf)) |
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return(0); |
break; |
break; |
} |
} |
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/* Continue if we're just words. */ |
if (mdoc_isdelim(p)) { |
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if ( ! rewind_elem(mdoc, ppos, tok)) |
if ( ! roffispunct(args[pos])) { |
return(0); |
i++; |
flushed = 1; |
continue; |
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} |
} |
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mdoc_word_alloc(mdoc, lastarg, p); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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} |
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/* Break if there's only remaining punctuation. */ |
if ( ! flushed && rewind_elem(mdoc, ppos, tok)) |
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return(0); |
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if (args[pos + 1] && roffispunct(args[pos + 1])) |
if (MDOC_LINEARG_MAX == j) |
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return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
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if (ppos > 1) |
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return(1); |
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return(append_delims(mdoc, tok, pos, buf)); |
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} |
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/* |
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* Constant macros span an entire line: they constitute a macro and all |
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* of its arguments and child data. |
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*/ |
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int |
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macro_constant(MACRO_PROT_ARGS) |
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{ |
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int c, lastarg, argc, sz, fl; |
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struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
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char *p; |
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fl = 0; |
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if (MDOC_QUOTABLE & mdoc_macros[tok].flags) |
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fl = ARGS_QUOTED; |
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for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
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lastarg = *pos; |
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c = mdoc_argv(mdoc, tok, &argv[argc], pos, buf); |
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if (ARGV_EOLN == c) |
break; |
break; |
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else if (ARGV_ARG == c) |
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continue; |
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else if (ARGV_WORD == c) |
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break; |
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/* If there are remaining words, start anew. */ |
mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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if ( ! macro(tree, tok, argc, argv, i, p)) |
if (MDOC_LINEARG_MAX == argc) { |
return(0); |
mdoc_argv_free(argc, argv); |
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return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
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} |
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/* Spit out the punctuation. */ |
mdoc_elem_alloc(mdoc, ppos, tok, argc, argv); |
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mdoc->next = MDOC_NEXT_CHILD; |
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if ( ! word(tree, tok, *args++)) |
mdoc_argv_free(argc, argv); |
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for (sz = 0; sz + argc < MDOC_LINEARG_MAX; sz++) { |
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lastarg = *pos; |
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c = mdoc_args(mdoc, tok, pos, buf, fl, &p); |
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if (ARGS_ERROR == c) |
return(0); |
return(0); |
i++; |
if (ARGS_EOLN == c) |
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break; |
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|
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mdoc_word_alloc(mdoc, lastarg, p); |
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mdoc->next = MDOC_NEXT_CHILD; |
} |
} |
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|
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if (MDOC_LINEARG_MAX == sz + argc) |
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return(mdoc_err(mdoc, tok, lastarg, ERR_ARGS_MANY)); |
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|
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return(rewind_elem(mdoc, ppos, tok)); |
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} |
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/* ARGSUSED */ |
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int |
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macro_obsolete(MACRO_PROT_ARGS) |
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{ |
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|
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return(mdoc_warn(mdoc, tok, ppos, WARN_IGN_OBSOLETE)); |
} |
} |