version 1.1, 2009/01/05 14:14:04 |
version 1.28, 2009/03/01 23:14:15 |
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* PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
#include <assert.h> |
#include <assert.h> |
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#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
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#include <string.h> |
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#include <time.h> |
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#include "private.h" |
#include "private.h" |
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typedef int (*a_act)(struct mdoc *, int, int, |
/* |
int, const char *[], |
* Actions are executed on macros after they've been post-validated: in |
int, const struct mdoc_arg *); |
* other words, a macro will not be "acted upon" until all of its |
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* children have been filled in (post-fix order). |
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*/ |
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struct actions { |
struct actions { |
a_act action; |
int (*post)(struct mdoc *); |
}; |
}; |
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/* Per-macro action routines. */ |
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static int post_bl(struct mdoc *); |
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static int post_bl_width(struct mdoc *); |
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static int post_bl_tagwidth(struct mdoc *); |
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static int post_sh(struct mdoc *); |
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static int post_os(struct mdoc *); |
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static int post_dt(struct mdoc *); |
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static int post_dd(struct mdoc *); |
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static int post_nm(struct mdoc *); |
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static int post_prologue(struct mdoc *); |
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/* Array of macro action routines. */ |
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const struct actions mdoc_actions[MDOC_MAX] = { |
const struct actions mdoc_actions[MDOC_MAX] = { |
{ NULL }, /* \" */ |
{ NULL }, /* \" */ |
{ NULL }, /* Dd */ |
{ post_dd }, /* Dd */ |
{ NULL }, /* Dt */ |
{ post_dt }, /* Dt */ |
{ NULL }, /* Os */ |
{ post_os }, /* Os */ |
{ NULL }, /* Sh */ |
{ post_sh }, /* Sh */ |
{ NULL }, /* Ss */ |
{ NULL }, /* Ss */ |
{ NULL }, /* Pp */ |
{ NULL }, /* Pp */ |
{ NULL }, /* D1 */ |
{ NULL }, /* D1 */ |
{ NULL }, /* Dl */ |
{ NULL }, /* Dl */ |
{ NULL }, /* Bd */ |
{ NULL }, /* Bd */ |
{ NULL }, /* Ed */ |
{ NULL }, /* Ed */ |
{ NULL }, /* Bl */ |
{ post_bl }, /* Bl */ |
{ NULL }, /* El */ |
{ NULL }, /* El */ |
{ NULL }, /* It */ |
{ NULL }, /* It */ |
{ NULL }, /* Ad */ |
{ NULL }, /* Ad */ |
Line 64 const struct actions mdoc_actions[MDOC_MAX] = { |
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Line 82 const struct actions mdoc_actions[MDOC_MAX] = { |
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{ NULL }, /* In */ |
{ NULL }, /* In */ |
{ NULL }, /* Li */ |
{ NULL }, /* Li */ |
{ NULL }, /* Nd */ |
{ NULL }, /* Nd */ |
{ NULL }, /* Nm */ |
{ post_nm }, /* Nm */ |
{ NULL }, /* Op */ |
{ NULL }, /* Op */ |
{ NULL }, /* Ot */ |
{ NULL }, /* Ot */ |
{ NULL }, /* Pa */ |
{ NULL }, /* Pa */ |
Line 141 const struct actions mdoc_actions[MDOC_MAX] = { |
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Line 159 const struct actions mdoc_actions[MDOC_MAX] = { |
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}; |
}; |
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int |
static int |
mdoc_action(struct mdoc *mdoc, int tok, int pos) |
post_nm(struct mdoc *mdoc) |
{ |
{ |
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char buf[64]; |
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return(1); |
assert(MDOC_ELEM == mdoc->last->type); |
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assert(MDOC_Nm == mdoc->last->tok); |
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/* |
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* The `Nm' macro sets the document's name when used the first |
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* time with an argument. Subsequent calls without a value will |
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* result in the name value being used. |
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*/ |
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if (mdoc->meta.name) |
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return(1); |
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if (xstrlcats(buf, mdoc->last->child, 64)) { |
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mdoc->meta.name = xstrdup(buf); |
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return(1); |
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} |
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return(mdoc_err(mdoc, "macro parameters too long")); |
} |
} |
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#if 0 |
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/* Post-processing. */ |
static int |
switch (tok) { |
post_sh(struct mdoc *mdoc) |
case (MDOC_Sh): |
{ |
sec = mdoc_atosec((size_t)sz, _CC(args)); |
enum mdoc_sec sec; |
if (SEC_CUSTOM != sec) |
char buf[64]; |
mdoc->sec_lastn = sec; |
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mdoc->sec_last = sec; |
/* |
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* We keep track of the current section /and/ the "named" |
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* section, which is one of the conventional ones, in order to |
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* check ordering. |
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*/ |
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if (MDOC_HEAD != mdoc->last->type) |
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return(1); |
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if (xstrlcats(buf, mdoc->last->child, 64)) { |
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if (SEC_CUSTOM != (sec = mdoc_atosec(buf))) |
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mdoc->lastnamed = sec; |
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mdoc->lastsec = sec; |
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} else |
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return(mdoc_err(mdoc, "parameters too long")); |
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switch (mdoc->lastsec) { |
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case (SEC_RETURN_VALUES): |
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/* FALLTHROUGH */ |
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case (SEC_ERRORS): |
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switch (mdoc->meta.msec) { |
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case (MSEC_2): |
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/* FALLTHROUGH */ |
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case (MSEC_3): |
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/* FALLTHROUGH */ |
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case (MSEC_9): |
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break; |
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default: |
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return(mdoc_warn(mdoc, WARN_COMPAT, |
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"inappropriate section for " |
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"manual section")); |
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} |
break; |
break; |
default: |
default: |
break; |
break; |
} |
} |
#endif |
return(1); |
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} |
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static int |
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post_dt(struct mdoc *mdoc) |
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{ |
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int i; |
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char *p; |
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struct mdoc_node *n; |
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/* |
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* Prologue title must be parsed into document meta-data. |
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*/ |
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assert(MDOC_ELEM == mdoc->last->type); |
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assert(MDOC_Dt == mdoc->last->tok); |
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assert(NULL == mdoc->meta.title); |
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/* LINTED */ |
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for (i = 0, n = mdoc->last->child; n; n = n->next, i++) { |
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assert(MDOC_TEXT == n->type); |
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p = n->data.text.string; |
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switch (i) { |
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case (0): |
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mdoc->meta.title = xstrdup(p); |
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break; |
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case (1): |
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mdoc->meta.msec = mdoc_atomsec(p); |
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if (MSEC_DEFAULT != mdoc->meta.msec) |
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break; |
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return(mdoc_nerr(mdoc, n, |
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"invalid parameter syntax")); |
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case (2): |
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mdoc->meta.vol = mdoc_atovol(p); |
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if (VOL_DEFAULT != mdoc->meta.vol) |
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break; |
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mdoc->meta.arch = mdoc_atoarch(p); |
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if (ARCH_DEFAULT != mdoc->meta.arch) |
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break; |
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return(mdoc_nerr(mdoc, n, |
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"invalid parameter syntax")); |
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default: |
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return(mdoc_nerr(mdoc, n, |
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"too many parameters")); |
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} |
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} |
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if (NULL == mdoc->meta.title) |
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mdoc->meta.title = xstrdup("UNTITLED"); |
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mdoc_msg(mdoc, "title: %s", mdoc->meta.title); |
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return(post_prologue(mdoc)); |
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} |
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static int |
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post_os(struct mdoc *mdoc) |
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{ |
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char buf[64]; |
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/* |
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* Prologue operating system must be parsed into document |
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* meta-data. |
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*/ |
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assert(MDOC_ELEM == mdoc->last->type); |
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assert(MDOC_Os == mdoc->last->tok); |
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assert(NULL == mdoc->meta.os); |
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if ( ! xstrlcats(buf, mdoc->last->child, 64)) |
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return(mdoc_err(mdoc, "macro parameters too long")); |
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mdoc->meta.os = xstrdup(buf[0] ? buf : "LOCAL"); |
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mdoc->lastnamed = SEC_BODY; |
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return(post_prologue(mdoc)); |
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} |
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static int |
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post_bl_tagwidth(struct mdoc *mdoc) |
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{ |
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struct mdoc_node *n; |
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struct mdoc_block *b; |
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int sz; |
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char buf[32]; |
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/* |
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* If -tag has been specified and -width has not been, then try |
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* to intuit our width from the first body element. |
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*/ |
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b = &mdoc->last->data.block; |
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if (NULL == (n = b->body->child)) |
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return(1); |
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assert(MDOC_It == n->tok); |
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/* |
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* Use the text width, if a text node, or the default macro |
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* width if a macro. |
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*/ |
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if ((n = n->data.block.head->child)) { |
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if (MDOC_TEXT != n->type) { |
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if (0 == (sz = mdoc_macro2len(n->tok))) |
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sz = -1; |
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} else |
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sz = (int)strlen(n->data.text.string) + 1; |
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} else |
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sz = -1; |
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if (-1 == sz) { |
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if ( ! mdoc_warn(mdoc, WARN_SYNTAX, |
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"cannot determine default %s", |
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mdoc_argnames[MDOC_Width])) |
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return(0); |
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sz = 10; |
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} |
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(void)snprintf(buf, sizeof(buf), "%dn", sz); |
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/* |
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* We have to dynamically add this to the macro's argument list. |
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* We're guaranteed that a MDOC_Width doesn't already exist. |
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*/ |
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(b->argc)++; |
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b->argv = xrealloc(b->argv, b->argc * sizeof(struct mdoc_arg)); |
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b->argv[b->argc - 1].arg = MDOC_Width; |
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b->argv[b->argc - 1].line = mdoc->last->line; |
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b->argv[b->argc - 1].pos = mdoc->last->pos; |
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b->argv[b->argc - 1].sz = 1; |
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b->argv[b->argc - 1].value = xcalloc(1, sizeof(char *)); |
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b->argv[b->argc - 1].value[0] = xstrdup(buf); |
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mdoc_msg(mdoc, "adding %s argument: %dn", |
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mdoc_argnames[MDOC_Width], sz); |
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return(1); |
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} |
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static int |
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post_bl_width(struct mdoc *mdoc) |
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{ |
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size_t width; |
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int i, tok; |
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char buf[32]; |
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char **p; |
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for (i = 0; i < (int)mdoc->last->data.block.argc; i++) |
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if (MDOC_Width == mdoc->last->data.block.argv[i].arg) |
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break; |
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assert(i < (int)mdoc->last->data.block.argc); |
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assert(1 == mdoc->last->data.block.argv[i].sz); |
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p = &mdoc->last->data.block.argv[i].value[0]; |
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/* |
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* If the value to -width is a macro, then we re-write it to be |
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* the macro's width as set in share/tmac/mdoc/doc-common. |
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*/ |
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if (xstrcmp(*p, "Ds")) |
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width = 8; |
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else if (MDOC_MAX == (tok = mdoc_find(mdoc, *p))) |
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return(1); |
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else if (0 == (width = mdoc_macro2len(tok))) |
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return(mdoc_warn(mdoc, WARN_SYNTAX, |
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"%s macro has no length", |
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mdoc_argnames[MDOC_Width])); |
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mdoc_msg(mdoc, "re-writing %s argument: %s -> %zun", |
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mdoc_argnames[MDOC_Width], *p, width); |
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/* The value already exists: free and reallocate it. */ |
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(void)snprintf(buf, sizeof(buf), "%zun", width); |
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free(*p); |
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*p = strdup(buf); |
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return(1); |
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} |
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static int |
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post_bl(struct mdoc *mdoc) |
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{ |
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int i, r; |
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if (MDOC_BLOCK != mdoc->last->type) |
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return(1); |
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/* |
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* These are fairly complicated, so we've broken them into two |
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* functions. post_bl_tagwidth() is called when a -tag is |
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* specified, but no -width (it must be guessed). The second |
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* when a -width is specified (macro indicators must be |
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* rewritten into real lengths). |
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*/ |
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for (r = i = 0; i < (int)mdoc->last->data.block.argc; i++) { |
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if (MDOC_Tag == mdoc->last->data.block.argv[i].arg) |
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r |= 1 << 0; |
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if (MDOC_Width == mdoc->last->data.block.argv[i].arg) |
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r |= 1 << 1; |
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} |
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if (r & (1 << 0) && ! (r & (1 << 1))) { |
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if ( ! post_bl_tagwidth(mdoc)) |
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return(0); |
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} else if (r & (1 << 1)) |
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if ( ! post_bl_width(mdoc)) |
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return(0); |
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return(1); |
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} |
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static int |
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post_dd(struct mdoc *mdoc) |
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{ |
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char buf[64]; |
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/* |
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* Prologue date must be parsed into document meta-data. We |
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* accept multiple kinds of dates, described mostly in |
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* mdoc_atotime(). |
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*/ |
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assert(MDOC_ELEM == mdoc->last->type); |
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assert(MDOC_Dd == mdoc->last->tok); |
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assert(0 == mdoc->meta.date); |
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if ( ! xstrlcats(buf, mdoc->last->child, 64)) |
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return(mdoc_err(mdoc, "macro parameters too long")); |
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if (0 == (mdoc->meta.date = mdoc_atotime(buf))) |
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return(mdoc_err(mdoc, "invalid parameter syntax")); |
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mdoc_msg(mdoc, "date: %u", mdoc->meta.date); |
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return(post_prologue(mdoc)); |
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} |
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static int |
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post_prologue(struct mdoc *mdoc) |
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{ |
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struct mdoc_node *n; |
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/* |
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* The end document shouldn't have the prologue macros as part |
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* of the syntax tree (they encompass only meta-data). |
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*/ |
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if (mdoc->last->parent->child == mdoc->last) |
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mdoc->last->parent->child = mdoc->last->prev; |
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if (mdoc->last->prev) |
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mdoc->last->prev->next = NULL; |
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n = mdoc->last; |
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assert(NULL == mdoc->last->next); |
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if (mdoc->last->prev) { |
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mdoc->last = mdoc->last->prev; |
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mdoc->next = MDOC_NEXT_SIBLING; |
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} else { |
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mdoc->last = mdoc->last->parent; |
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mdoc->next = MDOC_NEXT_CHILD; |
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} |
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mdoc_node_freelist(n); |
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return(1); |
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} |
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int |
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mdoc_action_post(struct mdoc *mdoc) |
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{ |
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if (MDOC_ACTED & mdoc->last->flags) |
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return(1); |
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mdoc->last->flags |= MDOC_ACTED; |
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if (MDOC_TEXT == mdoc->last->type) |
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return(1); |
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if (MDOC_ROOT == mdoc->last->type) |
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return(1); |
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if (NULL == mdoc_actions[mdoc->last->tok].post) |
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return(1); |
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return((*mdoc_actions[mdoc->last->tok].post)(mdoc)); |
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} |