cmark: Add function & option to normalize text nodes.

So, instead of

    <text>Hi</text>
    <text>&amp;</text>
    <text>lo</text>

we get

    <text>Hi&amp;lo</text>

* Added exported `cmark_consolidate_text_nodes` function.
* Added `CMARK_OPT_NORMALIZE` to options.
* Added optional normalization in XML writer.
* Added `--normalize` option to command-line program.
* Updated man page.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/main.c b/src/main.c
index eaef246..5855868 100644
--- a/src/main.c
+++ b/src/main.c
@@ -26,6 +26,7 @@ void print_usage()
 	printf("  --to, -t FORMAT  Specify output format (html, xml, man)\n");
 	printf("  --sourcepos      Include source position attribute\n");
 	printf("  --hardbreaks     Treat newlines as hard line breaks\n");
+	printf("  --normalize      Consolidate adjacent text nodes\n");
 	printf("  --help, -h       Print usage information\n");
 	printf("  --version        Print version\n");
 }
@@ -79,6 +80,8 @@ int main(int argc, char *argv[])
 			options |= CMARK_OPT_SOURCEPOS;
 		} else if (strcmp(argv[i], "--hardbreaks") == 0) {
 			options |= CMARK_OPT_HARDBREAKS;
+		} else if (strcmp(argv[i], "--normalize") == 0) {
+			options |= CMARK_OPT_NORMALIZE;
 		} else if ((strcmp(argv[i], "--help") == 0) ||
 		           (strcmp(argv[i], "-h") == 0)) {
 			print_usage();