Show characters a browser breaks at as escapes

The HTML parser turns a carriage return with no line feed after it into
a line feed, and WebKit starts a new line at U+2028 and U+2029, while
git and the line numbers count line feeds alone, so each one set every
later line of the tree and blame pages a line below its number. CSS
Text makes vertical tab, form feed and next line forced breaks as well,
though no engine honours that yet. The escapes follow gitweb, which
shows control characters the same way.

1 file changed, 13 insertions, 0 deletions

diff --git a/source/html.h b/source/html.hindex c6c0e19..9cad3a6 100644--- a/source/html.h+++ b/source/html.h@@ -61,6 +61,19 @@ extern void html_txt(const char *txt);  */ extern ssize_t html_ntxt(const char *txt, size_t len); +/*+ * The escape sequence a blob's text shows for the character at p when a+ * browser would start a new line at it though git does not, or NULL for any+ * other character. The character's length in bytes is stored in width.+ */+extern const char *html_line_break_escape(const char *p, const char *end, size_t *width);++/*+ * Escape the text of a blob for the page beside its line numbers, writing+ * each character html_line_break_escape names as its escape sequence.+ */+extern void html_blob_txt(const char *txt, size_t len);+ extern void html_attr(const char *txt); extern void html_url_path(const char *txt); 
diff --git a/source/html.h b/source/html.h
index c6c0e19..9cad3a6 100644
--- a/source/html.h
+++ b/source/html.h
@@ -61,6 +61,19 @@ extern void html_txt(const char *txt);
  */
 extern ssize_t html_ntxt(const char *txt, size_t len);
 
+/*
+ * The escape sequence a blob's text shows for the character at p when a
+ * browser would start a new line at it though git does not, or NULL for any
+ * other character. The character's length in bytes is stored in width.
+ */
+extern const char *html_line_break_escape(const char *p, const char *end, size_t *width);
+
+/*
+ * Escape the text of a blob for the page beside its line numbers, writing
+ * each character html_line_break_escape names as its escape sequence.
+ */
+extern void html_blob_txt(const char *txt, size_t len);
+
 extern void html_attr(const char *txt);
 extern void html_url_path(const char *txt);