[PATCH] stkutil: convert text attributes to html
Kristen Carlson Accardi
kristen at linux.intel.com
Mon Jun 14 08:19:51 PDT 2010
---
src/stkutil.c | 203 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
src/stkutil.h | 21 ++++++
2 files changed, 224 insertions(+), 0 deletions(-)
diff --git a/src/stkutil.c b/src/stkutil.c
index 8ac1dba..dbcb6ac 100644
--- a/src/stkutil.c
+++ b/src/stkutil.c
@@ -4307,3 +4307,206 @@ const unsigned char *stk_pdu_from_envelope(const struct stk_envelope *envelope,
return pdu;
}
+
+static GString *mapColourToHtml(GString *string, guint8 colour)
+{
+ GString *result = string;
+ int fg = colour & 0x0f;
+ int bg = (colour >> 4) & 0x0f;
+ static const char *html_colors[] = {
+ "#000000", /* Black */
+ "#808080", /* Dark Grey */
+ "#C11B17", /* Dark Red */
+ "#FBB117", /* Dark Yellow */
+ "#347235", /* Dark Green */
+ "#307D7E", /* Dark Cyan */
+ "#0000A0", /* Dark Blue */
+ "#C031C7", /* Dark Magenta */
+ "#C0C0C0", /* Grey */
+ "#FFFFFF", /* White */
+ "#FF0000", /* Bright Red */
+ "#FFFF00", /* Bright Yellow */
+ "#00FF00", /* Bright Green */
+ "#00FFFF", /* Bright Cyan */
+ "#0000FF", /* Bright Blue */
+ "#FF00FF", /* Bright Magenta */
+ };
+
+ if (colour == 0)
+ return string;
+
+ if (fg) {
+ result = g_string_append(result, "color: ");
+ result = g_string_append(result, html_colors[fg]);
+ result = g_string_append_c(result, ';');
+ }
+ if (bg) {
+ result = g_string_append(result, "background-color: ");
+ result = g_string_append(result, html_colors[bg]);
+ result = g_string_append_c(result, ';');
+ }
+
+
+ return result;
+}
+
+static GString *endFormat(GString *string)
+{
+ return g_string_append(string, "</p>");
+}
+
+static GString *mapFormatToHtml(GString *string, guint8 code, guint8 colour)
+{
+ GString *result = string;
+ guint8 align = code & STK_TEXT_FORMAT_ALIGN_MASK;
+ guint8 font = code & STK_TEXT_FORMAT_FONT_MASK;
+ guint8 style = code & STK_TEXT_FORMAT_STYLE_MASK;
+
+ /* formatting applies to a block of test */
+ result = g_string_append(result, "<p style=\"");
+
+ if (align == STK_TEXT_FORMAT_RIGHT_ALIGN)
+ result = g_string_append(result, "text-align: right;");
+ else if (align == STK_TEXT_FORMAT_CENTER_ALIGN)
+ result = g_string_append(result, "text-align: center;");
+ else if (align == STK_TEXT_FORMAT_LEFT_ALIGN)
+ result = g_string_append(result, "text-align: left;");
+
+ if (font == STK_TEXT_FORMAT_FONT_SIZE_LARGE)
+ result = g_string_append(result, "font-size: big;");
+ else if (font == STK_TEXT_FORMAT_FONT_SIZE_SMALL)
+ result = g_string_append(result, "font-size: small;");
+
+ if (style == STK_TEXT_FORMAT_STYLE_BOLD)
+ result = g_string_append(result, "font-weight: bold;");
+ else if (style == STK_TEXT_FORMAT_STYLE_ITALIC)
+ result = g_string_append(result, "font-style: italic;");
+ else if (style == STK_TEXT_FORMAT_STYLE_UNDERLINED)
+ result = g_string_append(result, "text-decoration: underline;");
+ else if (style == STK_TEXT_FORMAT_STYLE_STRIKETHROUGH)
+ result = g_string_append(result,
+ "text-decoration: line-through;");
+
+ /* add any color */
+ result = mapColourToHtml(result, colour);
+
+ result = g_string_append(result, "\">");
+
+ return result;
+}
+
+static gboolean isSpecialChar(char c)
+{
+ return (c == '\n' || c == '\r' || c == '<' || c == '>' || c == '&');
+}
+
+static gboolean mapCharToHtml(char *s, int pos, int len,
+ GString **string)
+{
+ gboolean rval = FALSE;
+ GString *result = *string;
+ unsigned char c = s[pos];
+
+ switch (c) {
+ case '\n':
+ result = g_string_append(result, "<br>");
+ break;
+ case '\r':
+ result = g_string_append(result, "<br>");
+ if ((pos + 1 < len) && (s[pos + 1] == '\n'))
+ rval = TRUE;
+ break;
+ case '<':
+ result = g_string_append(result, "<");
+ break;
+ case '>':
+ result = g_string_append(result, ">");
+ break;
+ case '&':
+ result = g_string_append(result, "&");
+ break;
+ }
+ *string = result;
+ return rval;
+}
+
+static GString *copyText(GString *string, char *text,
+ int *start_pos, int start, int end)
+{
+ GString *result = string;
+ int pos = *start_pos;
+
+ while (pos < start && pos < end) {
+ if (isSpecialChar(text[pos])) {
+ if (mapCharToHtml(text, pos, end, &result) == TRUE)
+ pos++;
+ }
+ else
+ result = g_string_append_c(result, text[pos]);
+ pos++;
+ }
+ *start_pos = pos;
+ return result;
+}
+
+static int extractFormat(const unsigned char *attrs, int index, int attrs_len,
+ int text_len, guint8 *start,
+ guint8 *end, guint8 *code, guint8 *colour)
+{
+ int i = index;
+
+ /* If there are no more attributes, initialize to default values */
+ if (i >= attrs_len) {
+ *start = text_len;
+ *end = text_len;
+ *code = 0;
+ *colour = 0;
+ return i;
+ }
+
+ *start = attrs[i++];
+ *end = attrs[i++];
+ *code = attrs[i++];
+
+ if (i < attrs_len)
+ *colour = attrs[i++];
+ else
+ *colour = 0;
+
+ if (*end == 0)
+ *end = text_len;
+
+ return i;
+}
+
+char *textToHtml(char *text, int text_len,
+ const unsigned char *attrs, int attrs_len)
+{
+ GString *result = g_string_new(NULL);
+ guint8 start, end, code, colour;
+ int pos = 0;
+ int i = 0;
+
+ while (pos < text_len) {
+ /* check for an attribute */
+ i = extractFormat(attrs, i, attrs_len, text_len, &start,
+ &end, &code, &colour);
+
+ /* insert any non-formatted text */
+ result = copyText(result, text, &pos, start, text_len);
+ if (pos >= text_len)
+ break;
+
+ /* start formatting */
+ result = mapFormatToHtml(result, code, colour);
+
+ /* insert formatted text */
+ result = copyText(result, text, &pos, end, text_len);
+
+ /* end formatting */
+ result = endFormat(result);
+ }
+
+ /* return characters from result. Caller must free char data */
+ return g_string_free(result, FALSE);
+}
diff --git a/src/stkutil.h b/src/stkutil.h
index 2da787d..2c78382 100644
--- a/src/stkutil.h
+++ b/src/stkutil.h
@@ -447,6 +447,25 @@ enum stk_broadcast_network_technology {
STK_BROADCAST_NETWORK_T_DMB = 0x03
};
+#define STK_TEXT_FORMAT_ALIGN_MASK 0x03
+#define STK_TEXT_FORMAT_FONT_MASK 0x0C
+#define STK_TEXT_FORMAT_STYLE_MASK 0xF0
+
+/* Defined in ETSI 123 40 9.2.3.24.10.1.1 */
+enum stk_text_format_code {
+ STK_TEXT_FORMAT_LEFT_ALIGN = 0x00,
+ STK_TEXT_FORMAT_CENTER_ALIGN = 0x01,
+ STK_TEXT_FORMAT_RIGHT_ALIGN = 0x02,
+ STK_TEXT_FORMAT_NO_ALIGN = 0x03,
+ STK_TEXT_FORMAT_FONT_SIZE_LARGE = 0x04,
+ STK_TEXT_FORMAT_FONT_SIZE_SMALL = 0x08,
+ STK_TEXT_FORMAT_FONT_SIZE_RESERVED = 0x0c,
+ STK_TEXT_FORMAT_STYLE_BOLD = 0x10,
+ STK_TEXT_FORMAT_STYLE_ITALIC = 0x20,
+ STK_TEXT_FORMAT_STYLE_UNDERLINED = 0x40,
+ STK_TEXT_FORMAT_STYLE_STRIKETHROUGH = 0x80,
+};
+
/* For data object that only has a byte array with undetermined length */
struct stk_common_byte_array {
unsigned char *array;
@@ -1213,3 +1232,5 @@ const unsigned char *stk_pdu_from_response(const struct stk_response *response,
unsigned int *out_length);
const unsigned char *stk_pdu_from_envelope(const struct stk_envelope *envelope,
unsigned int *out_length);
+char *textToHtml(char *text, int text_len,
+ const unsigned char *attrs, int attrs_len);
--
1.6.6.1
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