version 1.1, 2008/12/12 10:11:10 |
version 1.43, 2009/01/19 17:51:32 |
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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_alt(int); |
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static int rewind_dohalt(int, enum mdoc_type, |
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const struct mdoc_node *); |
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#define REWIND_REWIND (1 << 0) |
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#define REWIND_NOHALT (1 << 1) |
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#define REWIND_HALT (1 << 2) |
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static int rewind_dobreak(int, const struct mdoc_node *); |
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static int rewind_elem(struct mdoc *, int); |
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static int rewind_impblock(struct mdoc *, int, int, int); |
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static int rewind_expblock(struct mdoc *, int, int, int); |
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static int rewind_subblock(enum mdoc_type, |
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struct mdoc *, int, int, int); |
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static int rewind_last(struct mdoc *, struct mdoc_node *); |
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static int append_delims(struct mdoc *, int, int *, char *); |
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static int lookup(struct mdoc *, int, int, int, const char *); |
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static int |
static int |
macro_args_next(struct rofftree *tree, int *pos, char *buf, char **v) |
lookup(struct mdoc *mdoc, int line, int pos, int from, const char *p) |
{ |
{ |
int i; |
int res; |
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|
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res = mdoc_find(mdoc, p); |
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if (MDOC_PARSED & mdoc_macros[from].flags) |
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return(res); |
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if (MDOC_MAX == res) |
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return(res); |
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if ( ! mdoc_pwarn(mdoc, line, pos, WARN_SYNTAX, "macro-like parameter")) |
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return(-1); |
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return(MDOC_MAX); |
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} |
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static int |
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rewind_last(struct mdoc *mdoc, struct mdoc_node *to) |
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{ |
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assert(to); |
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mdoc->next = MDOC_NEXT_SIBLING; |
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while (mdoc->last != to) { |
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if ( ! mdoc_valid_post(mdoc)) |
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return(0); |
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if ( ! mdoc_action_post(mdoc)) |
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return(0); |
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mdoc->last = mdoc->last->parent; |
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assert(mdoc->last); |
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} |
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if ( ! mdoc_valid_post(mdoc)) |
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return(0); |
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return(mdoc_action_post(mdoc)); |
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} |
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static int |
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rewind_alt(int tok) |
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{ |
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switch (tok) { |
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case (MDOC_Ac): |
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return(MDOC_Ao); |
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case (MDOC_Bc): |
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return(MDOC_Bo); |
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case (MDOC_Dc): |
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return(MDOC_Do); |
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case (MDOC_Ec): |
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return(MDOC_Eo); |
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case (MDOC_Ed): |
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return(MDOC_Bd); |
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case (MDOC_Ef): |
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return(MDOC_Bf); |
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case (MDOC_Ek): |
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return(MDOC_Bk); |
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case (MDOC_El): |
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return(MDOC_Bl); |
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case (MDOC_Fc): |
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return(MDOC_Fo); |
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case (MDOC_Oc): |
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return(MDOC_Oo); |
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case (MDOC_Pc): |
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return(MDOC_Po); |
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case (MDOC_Qc): |
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return(MDOC_Qo); |
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case (MDOC_Re): |
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return(MDOC_Rs); |
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case (MDOC_Sc): |
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return(MDOC_So); |
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case (MDOC_Xc): |
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return(MDOC_Xo); |
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default: |
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break; |
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} |
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abort(); |
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/* NOTREACHED */ |
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} |
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static int |
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rewind_dohalt(int tok, enum mdoc_type type, const struct mdoc_node *p) |
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{ |
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if (MDOC_ROOT == p->type) |
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return(REWIND_HALT); |
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if (MDOC_VALID & p->flags) |
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return(REWIND_NOHALT); |
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switch (tok) { |
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/* One-liner implicit-scope. */ |
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case (MDOC_Aq): |
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/* FALLTHROUGH */ |
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case (MDOC_Bq): |
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/* FALLTHROUGH */ |
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case (MDOC_D1): |
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/* FALLTHROUGH */ |
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case (MDOC_Dl): |
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/* FALLTHROUGH */ |
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case (MDOC_Dq): |
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/* FALLTHROUGH */ |
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case (MDOC_Op): |
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/* FALLTHROUGH */ |
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case (MDOC_Pq): |
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/* FALLTHROUGH */ |
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case (MDOC_Ql): |
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/* FALLTHROUGH */ |
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case (MDOC_Qq): |
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/* FALLTHROUGH */ |
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case (MDOC_Sq): |
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assert(MDOC_BODY != type); |
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assert(MDOC_TAIL != type); |
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if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
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break; |
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/* Multi-line implicit-scope. */ |
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case (MDOC_It): |
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assert(MDOC_TAIL != type); |
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if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
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if (MDOC_BODY == p->type && MDOC_Bl == p->tok) |
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return(REWIND_HALT); |
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break; |
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case (MDOC_Sh): |
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if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
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break; |
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case (MDOC_Ss): |
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assert(MDOC_TAIL != type); |
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if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
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if (MDOC_BODY == p->type && MDOC_Sh == p->tok) |
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return(REWIND_HALT); |
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break; |
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|
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/* Multi-line explicit scope start. */ |
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case (MDOC_Ao): |
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/* FALLTHROUGH */ |
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case (MDOC_Bd): |
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/* FALLTHROUGH */ |
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case (MDOC_Bf): |
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/* FALLTHROUGH */ |
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case (MDOC_Bk): |
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/* FALLTHROUGH */ |
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case (MDOC_Bl): |
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/* FALLTHROUGH */ |
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case (MDOC_Bo): |
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/* FALLTHROUGH */ |
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case (MDOC_Do): |
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/* FALLTHROUGH */ |
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case (MDOC_Eo): |
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/* FALLTHROUGH */ |
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case (MDOC_Fo): |
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/* FALLTHROUGH */ |
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case (MDOC_Oo): |
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/* FALLTHROUGH */ |
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case (MDOC_Po): |
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/* FALLTHROUGH */ |
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case (MDOC_Qo): |
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/* FALLTHROUGH */ |
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case (MDOC_Rs): |
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/* FALLTHROUGH */ |
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case (MDOC_So): |
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/* FALLTHROUGH */ |
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case (MDOC_Xo): |
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if (type == p->type && tok == p->tok) |
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return(REWIND_REWIND); |
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break; |
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|
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/* Multi-line explicit scope close. */ |
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case (MDOC_Ac): |
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/* FALLTHROUGH */ |
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case (MDOC_Bc): |
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/* FALLTHROUGH */ |
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case (MDOC_Dc): |
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/* FALLTHROUGH */ |
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case (MDOC_Ec): |
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/* FALLTHROUGH */ |
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case (MDOC_Ed): |
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/* FALLTHROUGH */ |
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case (MDOC_Ek): |
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/* FALLTHROUGH */ |
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case (MDOC_El): |
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/* FALLTHROUGH */ |
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case (MDOC_Fc): |
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/* FALLTHROUGH */ |
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case (MDOC_Ef): |
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/* FALLTHROUGH */ |
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case (MDOC_Oc): |
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/* FALLTHROUGH */ |
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case (MDOC_Pc): |
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/* FALLTHROUGH */ |
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case (MDOC_Qc): |
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/* FALLTHROUGH */ |
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case (MDOC_Re): |
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/* FALLTHROUGH */ |
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case (MDOC_Sc): |
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/* FALLTHROUGH */ |
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case (MDOC_Xc): |
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if (type == p->type && rewind_alt(tok) == p->tok) |
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return(REWIND_REWIND); |
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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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return(REWIND_NOHALT); |
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} |
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static int |
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rewind_dobreak(int tok, const struct mdoc_node *p) |
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{ |
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assert(MDOC_ROOT != p->type); |
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if (MDOC_ELEM == p->type) |
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return(1); |
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if (MDOC_TEXT == p->type) |
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return(1); |
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if (MDOC_VALID & p->flags) |
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return(1); |
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switch (tok) { |
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/* Implicit rules. */ |
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case (MDOC_It): |
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return(MDOC_It == p->tok); |
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case (MDOC_Ss): |
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return(MDOC_Ss == p->tok); |
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case (MDOC_Sh): |
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if (MDOC_Ss == p->tok) |
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return(1); |
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return(MDOC_Sh == p->tok); |
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/* Extra scope rules. */ |
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case (MDOC_El): |
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if (MDOC_It == p->tok) |
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return(1); |
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break; |
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default: |
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break; |
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} |
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if (MDOC_EXPLICIT & mdoc_macros[tok].flags) |
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return(p->tok == rewind_alt(tok)); |
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else if (MDOC_BLOCK == p->type) |
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return(1); |
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return(tok == p->tok); |
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} |
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static int |
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rewind_elem(struct mdoc *mdoc, int tok) |
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{ |
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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->tok); |
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return(rewind_last(mdoc, n)); |
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} |
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static int |
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rewind_subblock(enum mdoc_type type, struct mdoc *mdoc, |
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int tok, int line, int ppos) |
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{ |
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struct mdoc_node *n; |
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int c; |
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/* LINTED */ |
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for (n = mdoc->last; n; n = n->parent) { |
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c = rewind_dohalt(tok, type, n); |
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if (REWIND_HALT == c) |
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return(1); |
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if (REWIND_REWIND == c) |
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break; |
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else if (rewind_dobreak(tok, n)) |
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continue; |
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return(mdoc_perr(mdoc, line, ppos, "scope breaks prior %s", mdoc_node2a(n))); |
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} |
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assert(n); |
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return(rewind_last(mdoc, n)); |
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} |
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static int |
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rewind_expblock(struct mdoc *mdoc, int tok, int line, int ppos) |
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{ |
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struct mdoc_node *n; |
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int c; |
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/* LINTED */ |
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for (n = mdoc->last; n; n = n->parent) { |
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c = rewind_dohalt(tok, MDOC_BLOCK, n); |
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if (REWIND_HALT == c) |
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return(mdoc_perr(mdoc, line, ppos, "closing macro has no context")); |
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if (REWIND_REWIND == c) |
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break; |
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else if (rewind_dobreak(tok, n)) |
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continue; |
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return(mdoc_perr(mdoc, line, ppos, "scope breaks prior %s", mdoc_node2a(n))); |
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} |
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assert(n); |
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return(rewind_last(mdoc, n)); |
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} |
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static int |
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rewind_impblock(struct mdoc *mdoc, int tok, int line, int ppos) |
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{ |
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struct mdoc_node *n; |
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int c; |
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/* LINTED */ |
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for (n = mdoc->last; n; n = n->parent) { |
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c = rewind_dohalt(tok, MDOC_BLOCK, n); |
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if (REWIND_HALT == c) |
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return(1); |
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else if (REWIND_REWIND == c) |
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break; |
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else if (rewind_dobreak(tok, n)) |
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continue; |
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return(mdoc_perr(mdoc, line, ppos, "scope breaks prior %s", mdoc_node2a(n))); |
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} |
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assert(n); |
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return(rewind_last(mdoc, n)); |
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} |
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static int |
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append_delims(struct mdoc *mdoc, int line, 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, line, 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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if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
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return(0); |
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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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int |
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macro_scoped_close(MACRO_PROT_ARGS) |
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{ |
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int tt, j, c, lastarg, maxargs, flushed; |
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char *p; |
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switch (tok) { |
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case (MDOC_Ec): |
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maxargs = 1; |
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break; |
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default: |
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maxargs = 0; |
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break; |
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} |
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tt = rewind_alt(tok); |
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mdoc_msg(mdoc, "parse: %s closing %s", |
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mdoc_macronames[tok], mdoc_macronames[tt]); |
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if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) { |
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if (0 == buf[*pos]) { |
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if ( ! rewind_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
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return(0); |
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return(rewind_expblock(mdoc, tok, line, ppos)); |
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} |
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return(mdoc_perr(mdoc, line, ppos, "macro expects no parameters")); |
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} |
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if ( ! rewind_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
return(0); |
return(0); |
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if ('\"' == buf[*pos]) { |
lastarg = ppos; |
/* Syntax error: quotation marks not allowed. */ |
flushed = 0; |
return(-1); |
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if (maxargs > 0) { |
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if ( ! mdoc_tail_alloc(mdoc, line, ppos, tt)) |
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return(0); |
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mdoc->next = MDOC_NEXT_CHILD; |
} |
} |
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*v = &buf[*pos]; |
for (j = 0; /* No sentinel. */; j++) { |
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lastarg = *pos; |
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while (buf[*pos] && ! isspace(buf[*pos])) |
if (j == maxargs && ! flushed) { |
(*pos)++; |
if ( ! rewind_expblock(mdoc, tok, line, ppos)) |
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return(0); |
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flushed = 1; |
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} |
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if (buf[*pos + 1] && '\\' == buf[*pos]) { |
c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
/* Syntax error: escaped whitespace not allowed. */ |
if (ARGS_ERROR == c) |
return(-1); |
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 (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
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return(0); |
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else if (MDOC_MAX != c) { |
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if ( ! flushed) { |
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if ( ! rewind_expblock(mdoc, tok, line, ppos)) |
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return(0); |
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flushed = 1; |
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} |
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if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
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return(0); |
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break; |
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} |
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if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
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return(0); |
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mdoc->next = MDOC_NEXT_SIBLING; |
} |
} |
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buf[i] = 0; |
if ( ! flushed && ! rewind_expblock(mdoc, tok, line, ppos)) |
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return(0); |
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|
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if (ppos > 1) |
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return(1); |
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return(append_delims(mdoc, line, pos, buf)); |
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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 la, lastpunct, c, fl, argc; |
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struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
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char *p; |
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la = ppos; |
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lastpunct = 0; |
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for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
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la = *pos; |
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c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
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if (ARGV_EOLN == c) |
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break; |
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if (ARGV_WORD == c) { |
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*pos = la; |
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break; |
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} else if (ARGV_ARG == c) |
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continue; |
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|
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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_LINEARG_MAX == argc) { |
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mdoc_argv_free(argc - 1, argv); |
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return(mdoc_perr(mdoc, line, ppos, "parameter hard-limit exceeded")); |
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} |
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|
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c = mdoc_elem_alloc(mdoc, line, ppos, tok, argc, argv); |
|
|
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if (0 == c) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
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} |
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|
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mdoc->next = MDOC_NEXT_CHILD; |
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|
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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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|
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lastpunct = 0; |
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for (;;) { |
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la = *pos; |
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c = mdoc_args(mdoc, line, 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 (-1 == (c = lookup(mdoc, line, la, tok, p))) |
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return(0); |
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else if (MDOC_MAX != c) { |
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if (0 == lastpunct && ! rewind_elem(mdoc, tok)) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
|
} |
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mdoc_argv_free(argc, argv); |
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|
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c = mdoc_macro(mdoc, c, line, la, pos, buf); |
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if (0 == c) |
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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, line, pos, buf)); |
|
} |
|
|
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if (mdoc_isdelim(p)) { |
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if (0 == lastpunct && ! rewind_elem(mdoc, tok)) { |
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mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
lastpunct = 1; |
|
} else if (lastpunct) { |
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c = mdoc_elem_alloc(mdoc, line, |
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ppos, tok, argc, argv); |
|
if (0 == c) { |
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mdoc_argv_free(argc, argv); |
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return(0); |
|
} |
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mdoc->next = MDOC_NEXT_CHILD; |
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lastpunct = 0; |
|
} |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, la, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} |
|
|
|
mdoc_argv_free(argc, argv); |
|
|
|
if (0 == lastpunct && ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, line, pos, buf)); |
|
} |
|
|
|
|
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int |
|
macro_scoped(MACRO_PROT_ARGS) |
|
{ |
|
int c, lastarg, argc, fl; |
|
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
|
char *p; |
|
|
|
assert ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)); |
|
|
|
if ( ! (MDOC_EXPLICIT & mdoc_macros[tok].flags)) { |
|
if ( ! rewind_subblock(MDOC_BODY, mdoc, tok, line, ppos)) |
|
return(0); |
|
if ( ! rewind_impblock(mdoc, tok, line, ppos)) |
|
return(0); |
|
} |
|
|
|
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
|
lastarg = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
|
if (ARGV_EOLN == c) |
|
break; |
|
if (ARGV_WORD == c) { |
|
*pos = lastarg; |
|
break; |
|
} else if (ARGV_ARG == c) |
|
continue; |
|
mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
|
|
if (MDOC_LINEARG_MAX == argc) { |
|
mdoc_argv_free(argc - 1, argv); |
|
return(mdoc_perr(mdoc, line, ppos, "parameter hard-limit exceeded")); |
|
} |
|
|
|
c = mdoc_block_alloc(mdoc, line, ppos, |
|
tok, (size_t)argc, argv); |
|
mdoc_argv_free(argc, argv); |
|
|
|
if (0 == c) |
|
return(0); |
|
|
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
if (0 == buf[*pos]) { |
|
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
return(1); |
|
} |
|
|
|
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
fl = ARGS_DELIM; |
|
if (MDOC_TABSEP & mdoc_macros[tok].flags) |
|
fl |= ARGS_TABSEP; |
|
|
|
for (;;) { |
|
lastarg = *pos; |
|
c = mdoc_args(mdoc, line, pos, buf, fl, &p); |
|
|
|
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_PUNCT == c) |
|
break; |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
|
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
|
return(0); |
|
else if (MDOC_MAX == c) { |
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
continue; |
|
} |
|
|
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
|
break; |
|
} |
|
|
|
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
if (1 == ppos && ! append_delims(mdoc, line, pos, buf)) |
|
return(0); |
|
|
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
return(1); |
return(1); |
} |
} |
|
|
/* |
|
* Parses the following: |
int |
* |
macro_scoped_line(MACRO_PROT_ARGS) |
* .Xx foo bar baz ; foo "bar baz" ; ; |
|
* ^---------- ^---------- |
|
*/ |
|
static int |
|
macro_fl(struct rofftree *tree, int tok, int *pos, char *buf) |
|
{ |
{ |
int i, j, c, first; |
int lastarg, c; |
char *args[ROFF_MAXLINEARG]; |
char *p; |
|
|
first = *pos == 0; |
if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, 0, NULL)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
for (j = 0; ; ) { |
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
i = *pos; |
return(0); |
c = macro_args_next(tree, *i, buf, args[j]); |
mdoc->next = MDOC_NEXT_CHILD; |
if (-1 == c) |
|
|
/* XXX - no known argument macros. */ |
|
|
|
lastarg = ppos; |
|
for (;;) { |
|
lastarg = *pos; |
|
c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
|
|
|
if (ARGS_ERROR == c) |
return(0); |
return(0); |
if (0 == c) |
if (ARGS_PUNCT == c) |
break; |
break; |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
/* Break at the next command. */ |
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
|
return(0); |
|
else if (MDOC_MAX == c) { |
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
continue; |
|
} |
|
|
if (ROFF_MAX != (c = rofffindcallable(args[pos]))) { |
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
if ( ! macro(tree, tok, argc, argv, i, p)) |
return(0); |
|
break; |
|
} |
|
|
|
if (1 == ppos) { |
|
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
if ( ! append_delims(mdoc, line, pos, buf)) |
|
return(0); |
|
} else if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
return(rewind_impblock(mdoc, tok, line, ppos)); |
|
} |
|
|
|
|
|
int |
|
macro_constant_scoped(MACRO_PROT_ARGS) |
|
{ |
|
int lastarg, flushed, j, c, maxargs; |
|
char *p; |
|
|
|
lastarg = ppos; |
|
flushed = 0; |
|
|
|
switch (tok) { |
|
case (MDOC_Eo): |
|
maxargs = 1; |
|
break; |
|
default: |
|
maxargs = 0; |
|
break; |
|
} |
|
|
|
if ( ! mdoc_block_alloc(mdoc, line, ppos, tok, 0, NULL)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
if (0 == maxargs) { |
|
if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
flushed = 1; |
|
} else if ( ! mdoc_head_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
|
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
for (j = 0; /* No sentinel. */; j++) { |
|
lastarg = *pos; |
|
|
|
if (j == maxargs && ! flushed) { |
|
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
return(0); |
return(0); |
if ( ! parse(tree, c, pos, args)) |
flushed = 1; |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
return(0); |
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
|
c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
|
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_PUNCT == c) |
break; |
break; |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
|
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
|
return(0); |
|
else if (MDOC_MAX != c) { |
|
if ( ! flushed) { |
|
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
flushed = 1; |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
|
break; |
} |
} |
|
|
/* Continue if we're just words. */ |
if ( ! flushed && mdoc_isdelim(p)) { |
|
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
flushed = 1; |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} |
|
|
if ( ! roffispunct(args[pos])) { |
if ( ! flushed) { |
i++; |
if ( ! rewind_subblock(MDOC_HEAD, mdoc, tok, line, ppos)) |
|
return(0); |
|
if ( ! mdoc_body_alloc(mdoc, line, ppos, tok)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, line, pos, buf)); |
|
} |
|
|
|
|
|
int |
|
macro_constant_delimited(MACRO_PROT_ARGS) |
|
{ |
|
int lastarg, flushed, j, c, maxargs, argc; |
|
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
|
char *p; |
|
|
|
lastarg = ppos; |
|
flushed = 0; |
|
|
|
switch (tok) { |
|
case (MDOC_No): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ns): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Pf): |
|
/* FALLTHROUGH */ |
|
case (MDOC_Ux): |
|
/* FALLTHROUGH */ |
|
case (MDOC_St): |
|
maxargs = 0; |
|
break; |
|
default: |
|
maxargs = 1; |
|
break; |
|
} |
|
|
|
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
|
lastarg = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
|
if (ARGV_EOLN == c) |
|
break; |
|
if (ARGV_WORD == c) { |
|
*pos = lastarg; |
|
break; |
|
} else if (ARGV_ARG == c) |
continue; |
continue; |
|
mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
|
|
if (MDOC_LINEARG_MAX == argc) { |
|
mdoc_argv_free(argc - 1, argv); |
|
return(mdoc_perr(mdoc, line, ppos, "parameter hard-limit exceeded")); |
|
} |
|
|
|
c = mdoc_elem_alloc(mdoc, line, ppos, tok, argc, argv); |
|
mdoc_argv_free(argc, argv); |
|
|
|
if (0 == c) |
|
return(0); |
|
|
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
for (j = 0; /* No sentinel. */; j++) { |
|
lastarg = *pos; |
|
|
|
if (j == maxargs && ! flushed) { |
|
if ( ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
} |
} |
|
|
/* Break if there's only remaining punctuation. */ |
c = mdoc_args(mdoc, line, pos, buf, ARGS_DELIM, &p); |
|
if (ARGS_ERROR == c) |
|
return(0); |
|
if (ARGS_PUNCT == c) |
|
break; |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
if (args[pos + 1] && roffispunct(args[pos + 1])) |
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
|
return(0); |
|
else if (MDOC_MAX != c) { |
|
if ( ! flushed && ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
|
if ( ! mdoc_macro(mdoc, c, line, lastarg, pos, buf)) |
|
return(0); |
break; |
break; |
|
} |
|
|
/* If there are remaining words, start anew. */ |
if ( ! flushed && mdoc_isdelim(p)) { |
|
if ( ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
flushed = 1; |
|
} |
|
|
|
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
|
return(0); |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} |
|
|
if ( ! macro(tree, tok, argc, argv, i, p)) |
if ( ! flushed && ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
|
|
if (ppos > 1) |
|
return(1); |
|
return(append_delims(mdoc, line, pos, buf)); |
|
} |
|
|
|
|
|
int |
|
macro_constant(MACRO_PROT_ARGS) |
|
{ |
|
int c, lastarg, argc, fl; |
|
struct mdoc_arg argv[MDOC_LINEARG_MAX]; |
|
char *p; |
|
struct mdoc_node *n; |
|
|
|
fl = 0; |
|
if (MDOC_QUOTABLE & mdoc_macros[tok].flags) |
|
fl = ARGS_QUOTED; |
|
|
|
for (argc = 0; argc < MDOC_LINEARG_MAX; argc++) { |
|
lastarg = *pos; |
|
c = mdoc_argv(mdoc, line, tok, &argv[argc], pos, buf); |
|
if (ARGV_EOLN == c) |
|
break; |
|
if (ARGV_WORD == c) { |
|
*pos = lastarg; |
|
break; |
|
} else if (ARGV_ARG == c) |
|
continue; |
|
|
|
mdoc_argv_free(argc, argv); |
|
return(0); |
|
} |
|
|
|
if (MDOC_LINEARG_MAX == argc) { |
|
mdoc_argv_free(argc - 1, argv); |
|
return(mdoc_perr(mdoc, line, ppos, "parameter hard-limit exceeded")); |
|
} |
|
|
|
c = mdoc_elem_alloc(mdoc, line, ppos, tok, argc, argv); |
|
mdoc_argv_free(argc, argv); |
|
|
|
if (0 == c) |
|
return(0); |
|
|
|
mdoc->next = MDOC_NEXT_CHILD; |
|
|
|
for (;;) { |
|
lastarg = *pos; |
|
c = mdoc_args(mdoc, line, pos, buf, fl, &p); |
|
if (ARGS_ERROR == c) |
return(0); |
return(0); |
|
if (ARGS_EOLN == c) |
|
break; |
|
|
/* Spit out the punctuation. */ |
if (-1 == (c = lookup(mdoc, line, lastarg, tok, p))) |
|
return(0); |
|
else if (MDOC_MAX != c) { |
|
if ( ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
return(mdoc_macro(mdoc, c, line, |
|
lastarg, pos, buf)); |
|
} |
|
|
if ( ! word(tree, tok, *args++)) |
if ( ! mdoc_word_alloc(mdoc, line, lastarg, p)) |
return(0); |
return(0); |
i++; |
mdoc->next = MDOC_NEXT_SIBLING; |
} |
} |
|
|
|
if ( ! rewind_elem(mdoc, tok)) |
|
return(0); |
|
if ( ! (MDOC_NOKEEP & mdoc_macros[tok].flags)) |
|
return(1); |
|
|
|
assert(mdoc->last->tok == tok); |
|
if (mdoc->last->parent->child == mdoc->last) |
|
mdoc->last->parent->child = mdoc->last->prev; |
|
if (mdoc->last->prev) |
|
mdoc->last->prev->next = NULL; |
|
|
|
n = mdoc->last; |
|
assert(NULL == mdoc->last->next); |
|
|
|
if (mdoc->last->prev) { |
|
mdoc->last = mdoc->last->prev; |
|
mdoc->next = MDOC_NEXT_SIBLING; |
|
} else { |
|
mdoc->last = mdoc->last->parent; |
|
mdoc->next = MDOC_NEXT_CHILD; |
|
} |
|
|
|
mdoc_node_freelist(n); |
|
|
|
return(1); |
|
} |
|
|
|
|
|
/* ARGSUSED */ |
|
int |
|
macro_obsolete(MACRO_PROT_ARGS) |
|
{ |
|
|
|
return(mdoc_pwarn(mdoc, line, ppos, WARN_SYNTAX, "macro is obsolete")); |
|
} |
|
|
|
|
|
int |
|
macro_end(struct mdoc *mdoc) |
|
{ |
|
struct mdoc_node *n; |
|
|
|
assert(mdoc->first); |
|
assert(mdoc->last); |
|
|
|
/* Scan for open explicit scopes. */ |
|
|
|
n = MDOC_VALID & mdoc->last->flags ? |
|
mdoc->last->parent : mdoc->last; |
|
|
|
for ( ; n; n = n->parent) { |
|
if (MDOC_BLOCK != n->type) |
|
continue; |
|
if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags)) |
|
continue; |
|
mdoc_nerr(mdoc, n, "macro scope still open on exit"); |
|
return(0); |
|
} |
|
|
|
return(rewind_last(mdoc, mdoc->first)); |
} |
} |