Support for macro widths (/usr/share/tmac/mdoc/doc-common).

4 files changed, 167 insertions, 3 deletions

diff --git a/action.c b/action.c
index 6fffc687..6197675a 100644
--- a/action.c
+++ b/action.c
@@ -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
diff --git a/private.h b/private.h
index 0daf875b..75229f14 100644
--- a/private.h
+++ b/private.h
@@ -131,6 +131,7 @@ enum	mdoc_msec mdoc_atomsec(const char *);
 enum	mdoc_vol  mdoc_atovol(const char *);
 enum	mdoc_arch mdoc_atoarch(const char *);
 time_t		  mdoc_atotime(const char *);
+size_t		  mdoc_macro2len(int);
 
 char		 *mdoc_type2a(enum mdoc_type);
 char		 *mdoc_node2a(struct mdoc_node *);
diff --git a/strings.c b/strings.c
index 632f4db9..8fca06ff 100644
--- a/strings.c
+++ b/strings.c
@@ -404,7 +404,7 @@ mdoc_arch2a(enum mdoc_arch arch)
 	case (ARCH_armish):
 		return("ARMISH");
 	case (ARCH_aviion):
-		return("AViion");
+		return("AViiON");
 	case (ARCH_hp300):
 		return("HP300");
 	case (ARCH_hppa):
@@ -726,3 +726,97 @@ mdoc_att2a(enum mdoc_att c)
 
 	return(p);
 }
+
+
+size_t
+mdoc_macro2len(int macro)
+{
+
+	switch (macro) {
+	case(MDOC_Ad):
+		return(12);
+	case(MDOC_Ao):
+		return(12);
+	case(MDOC_An):
+		return(12);
+	case(MDOC_Aq):
+		return(12);
+	case(MDOC_Ar):
+		return(12);
+	case(MDOC_Bo):
+		return(12);
+	case(MDOC_Bq):
+		return(12);
+	case(MDOC_Cd):
+		return(12);
+	case(MDOC_Cm):
+		return(10);
+	case(MDOC_Do):
+		return(10);
+	case(MDOC_Dq):
+		return(12);
+	case(MDOC_Dv):
+		return(12);
+	case(MDOC_Eo):
+		return(12);
+	case(MDOC_Em):
+		return(10);
+	case(MDOC_Er):
+		return(12);
+	case(MDOC_Ev):
+		return(15);
+	case(MDOC_Fa):
+		return(12);
+	case(MDOC_Fl):
+		return(10);
+	case(MDOC_Fo):
+		return(16);
+	case(MDOC_Fn):
+		return(16);
+	case(MDOC_Ic):
+		return(10);
+	case(MDOC_Li):
+		return(16);
+	case(MDOC_Ms):
+		return(6);
+	case(MDOC_Nm):
+		return(10);
+	case(MDOC_No):
+		return(12);
+	case(MDOC_Oo):
+		return(10);
+	case(MDOC_Op):
+		return(14);
+	case(MDOC_Pa):
+		return(32);
+	case(MDOC_Pf):
+		return(12);
+	case(MDOC_Po):
+		return(12);
+	case(MDOC_Pq):
+		return(12);
+	case(MDOC_Ql):
+		return(16);
+	case(MDOC_Qo):
+		return(12);
+	case(MDOC_So):
+		return(12);
+	case(MDOC_Sq):
+		return(12);
+	case(MDOC_Sy):
+		return(6);
+	case(MDOC_Sx):
+		return(16);
+	case(MDOC_Tn):
+		return(10);
+	case(MDOC_Va):
+		return(12);
+	case(MDOC_Vt):
+		return(12);
+	case(MDOC_Xr):
+		return(10);
+	default:
+		break;
+	};
+	return(0);
+}
diff --git a/term.c b/term.c
index e00ae9db..a646666e 100644
--- a/term.c
+++ b/term.c
@@ -17,6 +17,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 #include <assert.h>
+#include <ctype.h>
 #include <err.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -276,9 +277,29 @@ const struct termact *termacts = __termacts;
 static size_t
 arg_width(const struct mdoc_arg *arg)
 {
+	size_t		 len, i, v;
 
 	/* TODO */
 	assert(*arg->value);
+	if (0 == strcmp(*arg->value, "indent"))
+		return(INDENT);
+	if (0 == strcmp(*arg->value, "indent-two"))
+		return(INDENT * 2);
+
+	len = strlen(*arg->value);
+	assert(len > 0);
+
+	for (i = 0; i < len - 1; i++) 
+		if ( ! isdigit((int)(*arg->value)[i]))
+			break;
+
+	if (i == len - 1) {
+		if ('n' == (*arg->value)[len - 1]) {
+			v = (size_t)atoi(*arg->value);
+			return(v);
+		}
+
+	}
 	return(strlen(*arg->value));
 }
 
@@ -293,7 +314,6 @@ arg_offset(const struct mdoc_arg *arg)
 		return(INDENT);
 	if (0 == strcmp(*arg->value, "indent-two"))
 		return(INDENT * 2);
-
 	return(strlen(*arg->value));
 }