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add function to print a single line, ignoring \r and \n
[stagit.git] / src / stagit.c
diff --git a/src/stagit.c b/src/stagit.c
index 247fe704d42aac14c2b78348849f7c4d11974680..6b45b3601b9f86b36f18aa3655992f02103b6e28 100644 (file)
--- a/src/stagit.c
+++ b/src/stagit.c
@@ -14,10 +14,13 @@
 #include <unistd.h>
 
 #include <git2.h>
+
+#ifdef HAS_CMARK
 #include <cmark-gfm.h>
+#endif
 
-#include "cp.h"
 #include "compat.h"
+#include "cp.h"
 
 struct deltainfo {
        git_patch *patch;
@@ -68,6 +71,7 @@ static char *readme;
 static long long nlogcommits = -1; /* < 0 indicates not used */
 
 bool htmlized; /* true if markdoown converted to HTML */
+static char oldfilename[PATH_MAX]; /* filename of the last file */
 
 /* cache */
 static git_oid lastoid;
@@ -276,6 +280,26 @@ xmlencode(FILE *fp, const char *s, size_t len)
        }
 }
 
+/* Escape characters below as HTML 2.0 / XML 1.0, ignore printing '\n', '\r' */
+void
+xmlencodeline(FILE *fp, const char *s, size_t len)
+{
+       size_t i;
+
+       for (i = 0; *s && i < len; s++, i++) {
+               switch(*s) {
+               case '<':  fputs("&lt;",   fp); break;
+               case '>':  fputs("&gt;",   fp); break;
+               case '\'': fputs("&#39;",  fp); break;
+               case '&':  fputs("&amp;",  fp); break;
+               case '"':  fputs("&quot;", fp); break;
+               case '\r': break; /* ignore CR */
+               case '\n': break; /* ignore LF */
+               default:   putc(*s, fp);
+               }
+       }
+}
+
 int
 mkdirp(const char *path)
 {
@@ -364,7 +388,7 @@ writeheader(FILE *fp, const char *title)
        fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%sstyle.css\" />\n", relpath);
        fprintf(fp, "<link rel=\"stylesheet\" type=\"text/css\" href=\"%ssyntax.css\" />\n", relpath);
        fputs("</head>\n<body>\n<table><tr><td>", fp);
-       fprintf(fp, "<a href=\"../%s\"><img alt=\"Go home\" src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></a>",
+       fprintf(fp, "<a href=\"../%s\"><img alt=\"Home\" src=\"%slogo.png\" alt=\"\" width=\"32\" height=\"32\" /></a>",
                relpath, relpath);
        fputs("</td><td><h1>", fp);
        xmlencode(fp, strippedname, strlen(strippedname));
@@ -414,12 +438,16 @@ void
 call_chroma(const char *filename, FILE *fp, const char *s, size_t len)
 {
        htmlized = false;
+       char *html = "";
        // Flush HTML-file
        fflush(fp);
 
-       char *html = cmark_markdown_to_html(s, len, CMARK_OPT_DEFAULT);
+#ifdef HAS_CMARK
+       html = cmark_markdown_to_html(s, len, CMARK_OPT_DEFAULT);
        if (strcmp(get_ext(filename), "md") == 0) htmlized = true;
+#endif
 
+#ifdef HAS_CHROMA
        if (!htmlized) {
                // Copy STDOUT
                int stdout_copy = dup(1);
@@ -450,6 +478,9 @@ call_chroma(const char *filename, FILE *fp, const char *s, size_t len)
        } else {
                fprintf(fp, "%s", html);
        }
+#else
+               fprintf(fp, "<pre>%s</pre>", s);
+#endif
 }
 
 void
@@ -606,8 +637,9 @@ printshowfile(FILE *fp, struct commitinfo *ci)
                                        fprintf(fp, "<a href=\"#h%zu-%zu-%zu\" id=\"h%zu-%zu-%zu\" class=\"d\">-",
                                                i, j, k, i, j, k);
                                else
-                                       fputc(' ', fp);
-                               xmlencode(fp, line->content, line->content_len);
+                                       putc(' ', fp);
+                               xmlencodeline(fp, line->content, line->content_len);
+                               putc('\n', fp);
                                if (line->old_lineno == -1 || line->new_lineno == -1)
                                        fputs("</a>", fp);
                        }
@@ -838,7 +870,26 @@ writeblob(git_object *obj, const char *fpath, const char *filename, git_off_t fi
        xmlencode(fp, filename, strlen(filename));
        fprintf(fp, " (%s)", convertbytes((int)filesize));
 
-       fputs("</p><hr/>", fp);
+#ifdef HAS_CMARK
+       char newfpath[PATH_MAX];
+       char newfilename[PATH_MAX];
+       if (strcmp(get_ext(filename), "md") == 0) {
+               fprintf(fp, " <a href=\"%s.html-raw\">View raw</a>", filename);
+               strcpy(newfpath, fpath);
+               strcat(newfpath, "-raw");
+
+               strcpy(newfilename, filename);
+               strcat(newfilename, "-raw");
+               strcpy(oldfilename, filename);
+
+               /* NOTE: recurses */
+               writeblob(obj, newfpath, newfilename, filesize);
+       } else if (strcmp(get_ext(filename), "md-raw" ) == 0) {
+               fprintf(fp, " <a href=\"%s.html\">View rendered</a>", oldfilename);
+       }
+#endif
+
+       fputs(".</p><hr/>", fp);
 
        if (git_blob_is_binary((git_blob *)obj)) {
                fputs("<p>Binary file.</p>\n", fp);
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