[pLog-svn] r7062 - plog/branches/lifetype-1.2/bin-devel
jondaley at devel.lifetype.net
jondaley at devel.lifetype.net
Fri Oct 8 17:57:26 EDT 2010
Author: jondaley
Date: 2010-10-08 17:57:26 -0400 (Fri, 08 Oct 2010)
New Revision: 7062
Added:
plog/branches/lifetype-1.2/bin-devel/jsmin.c
Log:
here's the compressor source
Added: plog/branches/lifetype-1.2/bin-devel/jsmin.c
===================================================================
--- plog/branches/lifetype-1.2/bin-devel/jsmin.c (rev 0)
+++ plog/branches/lifetype-1.2/bin-devel/jsmin.c 2010-10-08 21:57:26 UTC (rev 7062)
@@ -0,0 +1,275 @@
+/* jsmin.c
+ 2008-08-03
+
+Copyright (c) 2002 Douglas Crockford (www.crockford.com)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+The Software shall be used for Good, not Evil.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+
+static int theA;
+static int theB;
+static int theLookahead = EOF;
+
+
+/* isAlphanum -- return true if the character is a letter, digit, underscore,
+ dollar sign, or non-ASCII character.
+*/
+
+static int
+isAlphanum(int c)
+{
+ return ((c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') ||
+ (c >= 'A' && c <= 'Z') || c == '_' || c == '$' || c == '\\' ||
+ c > 126);
+}
+
+
+/* get -- return the next character from stdin. Watch out for lookahead. If
+ the character is a control character, translate it to a space or
+ linefeed.
+*/
+
+static int
+get()
+{
+ int c = theLookahead;
+ theLookahead = EOF;
+ if (c == EOF) {
+ c = getc(stdin);
+ }
+ if (c >= ' ' || c == '\n' || c == EOF) {
+ return c;
+ }
+ if (c == '\r') {
+ return '\n';
+ }
+ return ' ';
+}
+
+
+/* peek -- get the next character without getting it.
+*/
+
+static int
+peek()
+{
+ theLookahead = get();
+ return theLookahead;
+}
+
+
+/* next -- get the next character, excluding comments. peek() is used to see
+ if a '/' is followed by a '/' or '*'.
+*/
+
+static int
+next()
+{
+ int c = get();
+ if (c == '/') {
+ switch (peek()) {
+ case '/':
+ for (;;) {
+ c = get();
+ if (c <= '\n') {
+ return c;
+ }
+ }
+ case '*':
+ get();
+ for (;;) {
+ switch (get()) {
+ case '*':
+ if (peek() == '/') {
+ get();
+ return ' ';
+ }
+ break;
+ case EOF:
+ fprintf(stderr, "Error: JSMIN Unterminated comment.\n");
+ exit(1);
+ }
+ }
+ default:
+ return c;
+ }
+ }
+ return c;
+}
+
+
+/* action -- do something! What you do is determined by the argument:
+ 1 Output A. Copy B to A. Get the next B.
+ 2 Copy B to A. Get the next B. (Delete A).
+ 3 Get the next B. (Delete B).
+ action treats a string as a single character. Wow!
+ action recognizes a regular expression if it is preceded by ( or , or =.
+*/
+
+static void
+action(int d)
+{
+ switch (d) {
+ case 1:
+ putc(theA, stdout);
+ case 2:
+ theA = theB;
+ if (theA == '\'' || theA == '"') {
+ for (;;) {
+ putc(theA, stdout);
+ theA = get();
+ if (theA == theB) {
+ break;
+ }
+ if (theA == '\\') {
+ putc(theA, stdout);
+ theA = get();
+ }
+ if (theA == EOF) {
+ fprintf(stderr, "Error: JSMIN unterminated string literal.");
+ exit(1);
+ }
+ }
+ }
+ case 3:
+ theB = next();
+ if (theB == '/' && (theA == '(' || theA == ',' || theA == '=' ||
+ theA == ':' || theA == '[' || theA == '!' ||
+ theA == '&' || theA == '|' || theA == '?' ||
+ theA == '{' || theA == '}' || theA == ';' ||
+ theA == '\n')) {
+ putc(theA, stdout);
+ putc(theB, stdout);
+ for (;;) {
+ theA = get();
+ if (theA == '/') {
+ break;
+ }
+ if (theA =='\\') {
+ putc(theA, stdout);
+ theA = get();
+ }
+ if (theA == EOF) {
+ fprintf(stderr,
+"Error: JSMIN unterminated Regular Expression literal.\n");
+ exit(1);
+ }
+ putc(theA, stdout);
+ }
+ theB = next();
+ }
+ }
+}
+
+
+/* jsmin -- Copy the input to the output, deleting the characters which are
+ insignificant to JavaScript. Comments will be removed. Tabs will be
+ replaced with spaces. Carriage returns will be replaced with linefeeds.
+ Most spaces and linefeeds will be removed.
+*/
+
+static void
+jsmin()
+{
+ theA = '\n';
+ action(3);
+ while (theA != EOF) {
+ switch (theA) {
+ case ' ':
+ if (isAlphanum(theB)) {
+ action(1);
+ } else {
+ action(2);
+ }
+ break;
+ case '\n':
+ switch (theB) {
+ case '{':
+ case '[':
+ case '(':
+ case '+':
+ case '-':
+ action(1);
+ break;
+ case ' ':
+ action(3);
+ break;
+ default:
+ if (isAlphanum(theB)) {
+ action(1);
+ } else {
+ action(2);
+ }
+ }
+ break;
+ default:
+ switch (theB) {
+ case ' ':
+ if (isAlphanum(theA)) {
+ action(1);
+ break;
+ }
+ action(3);
+ break;
+ case '\n':
+ switch (theA) {
+ case '}':
+ case ']':
+ case ')':
+ case '+':
+ case '-':
+ case '"':
+ case '\'':
+ action(1);
+ break;
+ default:
+ if (isAlphanum(theA)) {
+ action(1);
+ } else {
+ action(3);
+ }
+ }
+ break;
+ default:
+ action(1);
+ break;
+ }
+ }
+ }
+}
+
+
+/* main -- Output any command line arguments as comments
+ and then minify the input.
+*/
+extern int
+main(int argc, char* argv[])
+{
+ int i;
+ for (i = 1; i < argc; i += 1) {
+ fprintf(stdout, "// %s\n", argv[i]);
+ }
+ jsmin();
+ return 0;
+}
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