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author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:29:30 -0800 |
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committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 19:29:30 -0800 |
commit | b80e287d54a028e744f9fe412840a89ec7f8084b (patch) | |
tree | 03023e352820fc1b45c4f22a99394f628f8562bf /xmlwf/ct.c | |
parent | f062c26c3f3a2e17d8d0a1280503efe008ce3d89 (diff) | |
download | expat-cupcake-release.tar.gz |
auto import from //depot/cupcake/@135843android-sdk-tools_r2android-sdk-1.6_r2android-sdk-1.6_r1android-sdk-1.6-docs_r1android-sdk-1.5_r3android-sdk-1.5_r1android-sdk-1.5-preandroid-1.6_r2android-1.6_r1.5android-1.6_r1.4android-1.6_r1.3android-1.6_r1.2android-1.6_r1.1android-1.6_r1android-1.5r4android-1.5r3android-1.5r2android-1.5donut-release2donut-releasedonutcupcake-releasecupcake
Diffstat (limited to 'xmlwf/ct.c')
-rw-r--r-- | xmlwf/ct.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/xmlwf/ct.c b/xmlwf/ct.c new file mode 100644 index 00000000..95903a34 --- /dev/null +++ b/xmlwf/ct.c @@ -0,0 +1,147 @@ +#define CHARSET_MAX 41 + +static const char * +getTok(const char **pp) +{ + enum { inAtom, inString, init, inComment }; + int state = init; + const char *tokStart = 0; + for (;;) { + switch (**pp) { + case '\0': + return 0; + case ' ': + case '\r': + case '\t': + case '\n': + if (state == inAtom) + return tokStart; + break; + case '(': + if (state == inAtom) + return tokStart; + if (state != inString) + state++; + break; + case ')': + if (state > init) + --state; + else if (state != inString) + return 0; + break; + case ';': + case '/': + case '=': + if (state == inAtom) + return tokStart; + if (state == init) + return (*pp)++; + break; + case '\\': + ++*pp; + if (**pp == '\0') + return 0; + break; + case '"': + switch (state) { + case inString: + ++*pp; + return tokStart; + case inAtom: + return tokStart; + case init: + tokStart = *pp; + state = inString; + break; + } + break; + default: + if (state == init) { + tokStart = *pp; + state = inAtom; + } + break; + } + ++*pp; + } + /* not reached */ +} + +/* key must be lowercase ASCII */ + +static int +matchkey(const char *start, const char *end, const char *key) +{ + if (!start) + return 0; + for (; start != end; start++, key++) + if (*start != *key && *start != 'A' + (*key - 'a')) + return 0; + return *key == '\0'; +} + +void +getXMLCharset(const char *buf, char *charset) +{ + const char *next, *p; + + charset[0] = '\0'; + next = buf; + p = getTok(&next); + if (matchkey(p, next, "text")) + strcpy(charset, "us-ascii"); + else if (!matchkey(p, next, "application")) + return; + p = getTok(&next); + if (!p || *p != '/') + return; + p = getTok(&next); + if (matchkey(p, next, "xml")) + isXml = 1; + p = getTok(&next); + while (p) { + if (*p == ';') { + p = getTok(&next); + if (matchkey(p, next, "charset")) { + p = getTok(&next); + if (p && *p == '=') { + p = getTok(&next); + if (p) { + char *s = charset; + if (*p == '"') { + while (++p != next - 1) { + if (*p == '\\') + ++p; + if (s == charset + CHARSET_MAX - 1) { + charset[0] = '\0'; + break; + } + *s++ = *p; + } + *s++ = '\0'; + } + else { + if (next - p > CHARSET_MAX - 1) + break; + while (p != next) + *s++ = *p++; + *s = 0; + break; + } + } + } + } + } + else + p = getTok(&next); + } +} + +int +main(int argc, char **argv) +{ + char buf[CHARSET_MAX]; + getXMLCharset(argv[1], buf); + printf("charset = \"%s\"\n", buf); + return 0; +} |