1 files changed, 103 insertions, 0 deletions
diff --git a/src/modules/filters/thmlfootnotes.cpp b/src/modules/filters/thmlfootnotes.cpp
new file mode 100644
index 0000000..d9b1f0e
--- /dev/null
+++ b/src/modules/filters/thmlfootnotes.cpp
@@ -0,0 +1,103 @@
+/******************************************************************************
+ *
+ * thmlfootnotes -	SWFilter decendant to hide or show footnotes
+ *			in a ThML module.
+ */
+
+
+#include <stdlib.h>
+#include <string.h>
+#include <thmlfootnotes.h>
+#ifndef __GNUC__
+#else
+#include <unixstr.h>
+#endif
+
+
+const char ThMLFootnotes::on[] = "On";
+const char ThMLFootnotes::off[] = "Off";
+const char ThMLFootnotes::optName[] = "Footnotes";
+const char ThMLFootnotes::optTip[] = "Toggles Footnotes On and Off if they exist";
+
+
+ThMLFootnotes::ThMLFootnotes() {
+	option = false;
+	options.push_back(on);
+	options.push_back(off);
+}
+
+
+ThMLFootnotes::~ThMLFootnotes() {
+}
+
+void ThMLFootnotes::setOptionValue(const char *ival)
+{
+	option = (!stricmp(ival, on));
+}
+
+const char *ThMLFootnotes::getOptionValue()
+{
+	return (option) ? on:off;
+}
+
+char ThMLFootnotes::ProcessText(char *text, int maxlen, const SWKey *key, const SWModule *module)
+{
+	if (!option) {	// if we don't want footnotes
+		char *to, *from, token[2048]; // cheese.  Fix.
+		int tokpos = 0;
+		bool intoken = false;
+		int len;
+		bool hide = false;
+
+		len = strlen(text) + 1;	// shift string to right of buffer
+		if (len < maxlen) {
+			memmove(&text[maxlen - len], text, len);
+			from = &text[maxlen - len];
+		}
+		else	from = text;	// -------------------------------
+
+		for (to = text; *from; from++) {
+			if (*from == '<') {
+				intoken = true;
+				tokpos = 0;
+				token[0] = 0;
+				token[1] = 0;
+				token[2] = 0;
+				continue;
+			}
+			if (*from == '>') {	// process tokens
+				intoken = false;
+				if (!strncmp(token, "note", 4)) {
+				  hide = true;
+                                  continue;
+				}
+				else if (!strncmp(token, "/note", 5)) {
+				  hide = false;
+                                  continue;
+				}
+
+				// if not a footnote token, keep token in text
+				if (!hide) {
+					*to++ = '<';
+					for (char *tok = token; *tok; tok++)
+						*to++ = *tok;
+					*to++ = '>';
+				}
+				continue;
+			}
+			if (intoken) {
+				if (tokpos < 2045)
+					token[tokpos++] = *from;
+					token[tokpos+2] = 0;
+			}
+			else	{
+				if (!hide) {
+					*to++ = *from;
+				}
+			}
+		}
+		*to++ = 0;
+		*to = 0;
+	}
+	return 0;
+}