diff options
Diffstat (limited to 'action.c')
| -rw-r--r-- | action.c | 51 |
1 files changed, 50 insertions, 1 deletions
@@ -17,7 +17,9 @@ * PERFORMANCE OF THIS SOFTWARE. */ #include <assert.h> +#include <stdio.h> #include <stdlib.h> +#include <string.h> #include <time.h> #include "private.h" @@ -34,6 +36,7 @@ struct actions { /* Per-macro action routines. */ +static int post_bl(struct mdoc *); static int post_sh(struct mdoc *); static int post_os(struct mdoc *); static int post_dt(struct mdoc *); @@ -56,7 +59,7 @@ const struct actions mdoc_actions[MDOC_MAX] = { { NULL }, /* Dl */ { NULL }, /* Bd */ { NULL }, /* Ed */ - { NULL }, /* Bl */ + { post_bl }, /* Bl */ { NULL }, /* El */ { NULL }, /* It */ { NULL }, /* Ad */ @@ -276,6 +279,52 @@ post_os(struct mdoc *mdoc) /* + * Transform -width MACRO values into real widths. + */ +static int +post_bl(struct mdoc *mdoc) +{ + struct mdoc_block *bl; + size_t i, width; + int tok; + char buf[32]; + + if (MDOC_BLOCK != mdoc->last->type) + return(1); + + bl = &mdoc->last->data.block; + + for (i = 0; i < bl->argc; i++) + if (MDOC_Width == bl->argv[i].arg) + break; + + if (i == bl->argc) + return(1); + + assert(1 == bl->argv[i].sz); + if (MDOC_MAX == (tok = mdoc_find(mdoc, *bl->argv[i].value))) + return(1); + + if (0 == (width = mdoc_macro2len(tok))) + return(mdoc_warn(mdoc, WARN_SYNTAX, + "-%s macro has no length", + mdoc_argnames[MDOC_Width])); + + mdoc_msg(mdoc, "re-writing %s argument: %s -> %zun", + mdoc_argnames[MDOC_Width], + *bl->argv[i].value, width); + + /* FIXME: silently truncates. */ + (void)snprintf(buf, sizeof(buf), "%zun", width); + + free(*bl->argv[i].value); + *bl->argv[i].value = strdup(buf); + + return(1); +} + + +/* * Prologue date must be parsed into document meta-data. */ static int |