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-rw-r--r--src/cmark.h2
-rw-r--r--src/main.c2
-rw-r--r--src/man.c284
3 files changed, 130 insertions, 158 deletions
diff --git a/src/cmark.h b/src/cmark.h
index 6618301..7ae6d36 100644
--- a/src/cmark.h
+++ b/src/cmark.h
@@ -479,7 +479,7 @@ char *cmark_render_html(cmark_node *root, int options);
/** Render a 'node' tree as a groff man page, without the header.
*/
CMARK_EXPORT
-char *cmark_render_man(cmark_node *root, int options);
+char *cmark_render_man(cmark_node *root, int options, int width);
/** Render a 'node' tree as a commonmark document.
*/
diff --git a/src/main.c b/src/main.c
index e53acfb..26e42ca 100644
--- a/src/main.c
+++ b/src/main.c
@@ -47,7 +47,7 @@ static void print_document(cmark_node *document, writer_format writer,
result = cmark_render_xml(document, options);
break;
case FORMAT_MAN:
- result = cmark_render_man(document, options);
+ result = cmark_render_man(document, options, width);
break;
case FORMAT_COMMONMARK:
result = cmark_render_commonmark(document, options, width);
diff --git a/src/man.c b/src/man.c
index 8ff4a9f..1fbbc9d 100644
--- a/src/man.c
+++ b/src/man.c
@@ -8,110 +8,93 @@
#include "node.h"
#include "buffer.h"
#include "utf8.h"
+#include "render.h"
-// Functions to convert cmark_nodes to groff man strings.
+#define OUT(s, wrap, escaping) renderer->out(renderer, s, wrap, escaping)
+#define LIT(s) renderer->out(renderer, s, false, LITERAL)
+#define CR() renderer->cr(renderer)
+#define BLANKLINE() renderer->blankline(renderer)
-static void escape_man(cmark_strbuf *dest, const unsigned char *source, int length)
+// Functions to convert cmark_nodes to groff man strings.
+static
+void S_outc(cmark_renderer *renderer,
+ cmark_escaping escape,
+ int32_t c,
+ unsigned char nextc)
{
- int32_t c;
- int i = 0;
- int len;
- bool beginLine = true;
-
- while (i < length) {
- len = utf8proc_iterate(source + i, length - i, &c);
- if (len == -1) { // error condition
- return; // return without rendering anything
+ (void)(escape); // avoid unused parameter warning
+ (void)(nextc);
+
+ switch(c) {
+ case 46:
+ if (renderer->begin_line) {
+ cmark_strbuf_puts(renderer->buffer, "\\&.");
+ renderer->column += 3;
+ } else {
+ utf8proc_encode_char(c, renderer->buffer);
+ renderer->column += 1;
}
- switch(c) {
- case 46:
- if (beginLine) {
- cmark_strbuf_puts(dest, "\\&.");
- } else {
- utf8proc_encode_char(c, dest);
- }
- break;
- case 39:
- if (beginLine) {
- cmark_strbuf_puts(dest, "\\&'");
- } else {
- utf8proc_encode_char(c, dest);
- }
- break;
- case 45:
- cmark_strbuf_puts(dest, "\\-");
- break;
- case 92:
- cmark_strbuf_puts(dest, "\\e");
- break;
- case 8216: // left single quote
- cmark_strbuf_puts(dest, "\\[oq]");
- break;
- case 8217: // right single quote
- cmark_strbuf_puts(dest, "\\[cq]");
- break;
- case 8220: // left double quote
- cmark_strbuf_puts(dest, "\\[lq]");
- break;
- case 8221: // right double quote
- cmark_strbuf_puts(dest, "\\[rq]");
- break;
- case 8212: // em dash
- cmark_strbuf_puts(dest, "\\[em]");
- break;
- case 8211: // en dash
- cmark_strbuf_puts(dest, "\\[en]");
- break;
- default:
- utf8proc_encode_char(c, dest);
+ break;
+ case 39:
+ if (renderer->begin_line) {
+ cmark_strbuf_puts(renderer->buffer, "\\&'");
+ renderer->column += 3;
+ } else {
+ utf8proc_encode_char(c, renderer->buffer);
+ renderer->column += 1;
}
- beginLine = (c == 10);
- i += len;
+ break;
+ case 45:
+ cmark_strbuf_puts(renderer->buffer, "\\-");
+ renderer->column += 2;
+ break;
+ case 92:
+ cmark_strbuf_puts(renderer->buffer, "\\e");
+ renderer->column += 2;
+ break;
+ case 8216: // left single quote
+ cmark_strbuf_puts(renderer->buffer, "\\[oq]");
+ renderer->column += 5;
+ break;
+ case 8217: // right single quote
+ cmark_strbuf_puts(renderer->buffer, "\\[cq]");
+ renderer->column += 5;
+ break;
+ case 8220: // left double quote
+ cmark_strbuf_puts(renderer->buffer, "\\[lq]");
+ renderer->column += 5;
+ break;
+ case 8221: // right double quote
+ cmark_strbuf_puts(renderer->buffer, "\\[rq]");
+ renderer->column += 5;
+ break;
+ case 8212: // em dash
+ cmark_strbuf_puts(renderer->buffer, "\\[em]");
+ renderer->column += 5;
+ break;
+ case 8211: // en dash
+ cmark_strbuf_puts(renderer->buffer, "\\[en]");
+ renderer->column += 5;
+ break;
+ default:
+ utf8proc_encode_char(c, renderer->buffer);
+ renderer->column += 1;
}
+ renderer->begin_line = (c == 10);
}
-static inline void cr(cmark_strbuf *man)
-{
- if (man->size && man->ptr[man->size - 1] != '\n')
- cmark_strbuf_putc(man, '\n');
-}
-
-struct render_state {
- cmark_strbuf* man;
- cmark_node *plain;
-};
-
static int
-S_render_node(cmark_node *node, cmark_event_type ev_type,
- struct render_state *state)
+S_render_node(cmark_renderer *renderer,
+ cmark_node *node,
+ cmark_event_type ev_type,
+ int options)
{
cmark_node *tmp;
- cmark_strbuf *man = state->man;
int list_number;
bool entering = (ev_type == CMARK_EVENT_ENTER);
- if (state->plain == node) { // back at original node
- state->plain = NULL;
- }
-
- if (state->plain != NULL) {
- switch(node->type) {
- case CMARK_NODE_TEXT:
- case CMARK_NODE_CODE:
- escape_man(man, node->as.literal.data,
- node->as.literal.len);
- break;
-
- case CMARK_NODE_LINEBREAK:
- case CMARK_NODE_SOFTBREAK:
- cmark_strbuf_putc(man, ' ');
- break;
-
- default:
- break;
- }
- return 1;
- }
+ // avoid unused parameter error:
+ (void)(options);
switch (node->type) {
case CMARK_NODE_DOCUMENT:
@@ -119,13 +102,13 @@ S_render_node(cmark_node *node, cmark_event_type ev_type,
case CMARK_NODE_BLOCK_QUOTE:
if (entering) {
- cr(man);
- cmark_strbuf_puts(man, ".RS");
- cr(man);
+ CR();
+ LIT(".RS");
+ CR();
} else {
- cr(man);
- cmark_strbuf_puts(man, ".RE");
- cr(man);
+ CR();
+ LIT(".RE");
+ CR();
}
break;
@@ -134,11 +117,11 @@ S_render_node(cmark_node *node, cmark_event_type ev_type,
case CMARK_NODE_ITEM:
if (entering) {
- cr(man);
- cmark_strbuf_puts(man, ".IP ");
+ CR();
+ LIT(".IP ");
if (cmark_node_get_list_type(node->parent) ==
CMARK_BULLET_LIST) {
- cmark_strbuf_puts(man, "\\[bu] 2");
+ LIT("\\[bu] 2");
} else {
list_number = cmark_node_get_list_start(node->parent);
tmp = node;
@@ -146,43 +129,45 @@ S_render_node(cmark_node *node, cmark_event_type ev_type,
tmp = tmp->prev;
list_number += 1;
}
- cmark_strbuf_printf(man, "\"%d.\" 4", list_number);
+ char list_number_s[20];
+ sprintf(list_number_s, "\"%d.\" 4", list_number);
+ LIT(list_number_s);
}
- cr(man);
+ CR();
} else {
- cr(man);
+ CR();
}
break;
case CMARK_NODE_HEADER:
if (entering) {
- cr(man);
- cmark_strbuf_puts(man,
- cmark_node_get_header_level(node) == 1 ?
+ CR();
+ LIT(cmark_node_get_header_level(node) == 1 ?
".SH" : ".SS");
- cr(man);
+ CR();
} else {
- cr(man);
+ CR();
}
break;
case CMARK_NODE_CODE_BLOCK:
- cr(man);
- cmark_strbuf_puts(man, ".IP\n.nf\n\\f[C]\n");
- escape_man(man, node->as.code.literal.data,
- node->as.code.literal.len);
- cr(man);
- cmark_strbuf_puts(man, "\\f[]\n.fi");
- cr(man);
+ CR();
+ LIT(".IP\n.nf\n\\f[C]\n");
+ OUT(cmark_node_get_literal(node),
+ false,
+ NORMAL);
+ CR();
+ LIT("\\f[]\n.fi");
+ CR();
break;
case CMARK_NODE_HTML:
break;
case CMARK_NODE_HRULE:
- cr(man);
- cmark_strbuf_puts(man, ".PP\n * * * * *");
- cr(man);
+ CR();
+ LIT(".PP\n * * * * *");
+ CR();
break;
case CMARK_NODE_PARAGRAPH:
@@ -193,32 +178,36 @@ S_render_node(cmark_node *node, cmark_event_type ev_type,
node->prev == NULL) {
// no blank line or .PP
} else {
- cr(man);
- cmark_strbuf_puts(man, ".PP\n");
+ CR();
+ LIT(".PP");
+ CR();
}
} else {
- cr(man);
+ CR();
}
break;
case CMARK_NODE_TEXT:
- escape_man(man, node->as.literal.data,
- node->as.literal.len);
+ OUT(cmark_node_get_literal(node), true, NORMAL);
break;
case CMARK_NODE_LINEBREAK:
- cmark_strbuf_puts(man, ".PD 0\n.P\n.PD");
- cr(man);
+ LIT(".PD 0\n.P\n.PD");
+ CR();
break;
case CMARK_NODE_SOFTBREAK:
- cmark_strbuf_putc(man, '\n');
+ if (renderer->width == 0) {
+ CR();
+ } else {
+ OUT(" ", true, LITERAL);
+ }
break;
case CMARK_NODE_CODE:
- cmark_strbuf_puts(man, "\\f[C]");
- escape_man(man, node->as.literal.data, node->as.literal.len);
- cmark_strbuf_puts(man, "\\f[]");
+ LIT("\\f[C]");
+ OUT(cmark_node_get_literal(node), true, NORMAL);
+ LIT("\\f[]");
break;
case CMARK_NODE_INLINE_HTML:
@@ -226,33 +215,33 @@ S_render_node(cmark_node *node, cmark_event_type ev_type,
case CMARK_NODE_STRONG:
if (entering) {
- cmark_strbuf_puts(man, "\\f[B]");
+ LIT("\\f[B]");
} else {
- cmark_strbuf_puts(man, "\\f[]");
+ LIT("\\f[]");
}
break;
case CMARK_NODE_EMPH:
if (entering) {
- cmark_strbuf_puts(man, "\\f[I]");
+ LIT("\\f[I]");
} else {
- cmark_strbuf_puts(man, "\\f[]");
+ LIT("\\f[]");
}
break;
case CMARK_NODE_LINK:
if (!entering) {
- cmark_strbuf_printf(man, " (%s)",
- cmark_node_get_url(node));
+ LIT(" (");
+ OUT(cmark_node_get_url(node), true, URL);
+ LIT(")");
}
break;
case CMARK_NODE_IMAGE:
if (entering) {
- cmark_strbuf_puts(man, "[IMAGE: ");
- state->plain = node;
+ LIT("[IMAGE: ");
} else {
- cmark_strbuf_puts(man, "]");
+ LIT("]");
}
break;
@@ -261,27 +250,10 @@ S_render_node(cmark_node *node, cmark_event_type ev_type,
break;
}
- // cmark_strbuf_putc(man, 'x');
return 1;
}
-char *cmark_render_man(cmark_node *root, int options)
+char *cmark_render_man(cmark_node *root, int options, int width)
{
- char *result;
- cmark_strbuf man = GH_BUF_INIT;
- struct render_state state = { &man, NULL };
- cmark_node *cur;
- cmark_event_type ev_type;
- cmark_iter *iter = cmark_iter_new(root);
-
- if (options == 0) options = 0; // avoid warning about unused parameters
-
- while ((ev_type = cmark_iter_next(iter)) != CMARK_EVENT_DONE) {
- cur = cmark_iter_get_node(iter);
- S_render_node(cur, ev_type, &state);
- }
- result = (char *)cmark_strbuf_detach(&man);
-
- cmark_iter_free(iter);
- return result;
+ return cmark_render(root, options, width, S_outc, S_render_node);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 07:33:09 +0000