diff options
Diffstat (limited to 'framework/Web/Javascripts/extra/tp_template.js')
| -rw-r--r-- | framework/Web/Javascripts/extra/tp_template.js | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/framework/Web/Javascripts/extra/tp_template.js b/framework/Web/Javascripts/extra/tp_template.js new file mode 100644 index 00000000..6015034c --- /dev/null +++ b/framework/Web/Javascripts/extra/tp_template.js @@ -0,0 +1,315 @@ +/**
+ * TrimPath Template. Release 1.0.16.
+ * Copyright (C) 2004, 2005 Metaha.
+ *
+ * TrimPath Template is licensed under the GNU General Public License
+ * and the Apache License, Version 2.0, as follows:
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed WITHOUT ANY WARRANTY; without even the
+ * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+var TrimPath;
+
+// TODO: Debugging mode vs stop-on-error mode - runtime flag.
+// TODO: Handle || (or) characters and backslashes.
+// TODO: Add more modifiers.
+
+(function() { // Using a closure to keep global namespace clean.
+ var theEval = eval; // Security, to ensure eval cleanliness.
+ if (TrimPath == null)
+ TrimPath = new Object();
+ if (TrimPath.evalEx == null)
+ TrimPath.evalEx = function(src) { return theEval(src); };
+
+ TrimPath.parseTemplate = function(tmplContent, optTmplName, optEtc) {
+ if (optEtc == null)
+ optEtc = TrimPath.parseTemplate_etc;
+ var funcSrc = parse(tmplContent, optTmplName, optEtc);
+ var func = TrimPath.evalEx(funcSrc, optTmplName, 1);
+ if (func != null)
+ return new optEtc.Template(optTmplName, tmplContent, funcSrc, func, optEtc);
+ return null;
+ }
+
+ try {
+ String.prototype.process = function(context, optFlags) {
+ var template = TrimPath.parseTemplate(this, null);
+ if (template != null)
+ return template.process(context, optFlags);
+ return this;
+ }
+ } catch (e) { // Swallow exception, such as when String.prototype is sealed.
+ }
+
+ TrimPath.parseTemplate_etc = {}; // Exposed for extensibility.
+ TrimPath.parseTemplate_etc.statementTag = "forelse|for|if|elseif|else|var|macro";
+ TrimPath.parseTemplate_etc.statementDef = { // Lookup table for statement tags.
+ "if" : { delta: 1, prefix: "if (", suffix: ") {", paramMin: 1 },
+ "else" : { delta: 0, prefix: "} else {" },
+ "elseif" : { delta: 0, prefix: "} else { if (", suffix: ") {", paramDefault: "true" },
+ "/if" : { delta: -1, prefix: "}" },
+ "for" : { delta: 1, paramMin: 3,
+ prefixFunc : function(stmtParts, state, tmplName, etc) {
+ if (stmtParts[2] != "in")
+ throw new etc.ParseError(tmplName, state.line, "bad for loop statement: " + stmtParts.join(' '));
+ var iterVar = stmtParts[1];
+ var listVar = "__LIST__" + iterVar;
+ return [ "var ", listVar, " = ", stmtParts[3], ";",
+ "if ((", listVar, ") != null && (", listVar, ").length > 0) { for (var ",
+ iterVar, "_index in ", listVar, ") { var ",
+ iterVar, " = ", listVar, "[", iterVar, "_index];" ].join("");
+ } },
+ "forelse" : { delta: 0, prefix: "} } else { if (", suffix: ") {", paramDefault: "true" },
+ "/for" : { delta: -1, prefix: "} }" },
+ "var" : { delta: 0, prefix: "var ", suffix: ";" },
+ "macro" : { delta: 1, prefix: "function ", suffix: "{ var _OUT_arr = []; var _OUT = { write: function(m) { if (m) _OUT_arr.push(m); }, }; " },
+ "/macro" : { delta: -1, prefix: " return _OUT_arr.join(''); }" }
+ }
+ TrimPath.parseTemplate_etc.modifierDef = {
+ "eat" : function(v) { return ""; },
+ "escape" : function(s) { return String(s).replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">"); },
+ "capitalize" : function(s) { return String(s).toUpperCase(); },
+ "default" : function(s, d) { return s != null ? s : d; }
+ }
+ TrimPath.parseTemplate_etc.modifierDef.h = TrimPath.parseTemplate_etc.modifierDef.escape;
+
+ TrimPath.parseTemplate_etc.Template = function(tmplName, tmplContent, funcSrc, func, etc) {
+ this.process = function(context, flags) {
+ if (context == null)
+ context = {};
+ if (context._MODIFIERS == null)
+ context._MODIFIERS = {};
+ for (var k in etc.modifierDef) {
+ if (context._MODIFIERS[k] == null)
+ context._MODIFIERS[k] = etc.modifierDef[k];
+ }
+ if (flags == null)
+ flags = {};
+ var resultArr = [];
+ var resultOut = { write: function(m) { if (m) resultArr.push(m); } };
+ try {
+ func(resultOut, context, flags);
+ } catch (e) {
+ if (flags.throwExceptions == true)
+ throw e;
+ var result = new String(resultArr.join("") + "[ERROR: " + e.toString() + "]");
+ result["exception"] = e;
+ return result;
+ }
+ return resultArr.join("");
+ }
+ this.name = tmplName;
+ this.source = tmplContent;
+ this.sourceFunc = funcSrc;
+ this.toString = function() { return "TrimPath.Template [" + tmplName + "]"; }
+ }
+ TrimPath.parseTemplate_etc.ParseError = function(name, line, message) {
+ this.name = name;
+ this.line = line;
+ this.message = message;
+ }
+ TrimPath.parseTemplate_etc.ParseError.prototype.toString = function() {
+ return ("TrimPath template ParseError in " + this.name + ": line " + this.line + ", " + this.msg);
+ }
+
+ var parse = function(body, tmplName, etc) {
+ body = cleanWhiteSpace(body);
+ var funcText = [ "var TrimPath_Template_TEMP = function(_OUT, _CONTEXT, _FLAGS) { with (_CONTEXT) {" ];
+ var state = { stack: [], line: 1 }; // TODO: Fix line number counting.
+ var endStmtPrev = -1;
+ while (endStmtPrev + 1 < body.length) {
+ var begStmt = endStmtPrev;
+ // Scan until we find some statement markup.
+ begStmt = body.indexOf("{", begStmt + 1);
+ while (begStmt >= 0) {
+ if (body.charAt(begStmt - 1) != '$' && // Not an expression or backslashed,
+ body.charAt(begStmt - 1) != '\\') { // so we assume it must be a statement tag.
+ var offset = (body.charAt(begStmt + 1) == '/' ? 2 : 1); // Close tags offset of 2 skips '/'.
+ // 10 is larger than maximum statement tag length.
+ if (body.substring(begStmt + offset, begStmt + 10 + offset).search(TrimPath.parseTemplate_etc.statementTag) == 0)
+ break; // Found a match.
+ }
+ begStmt = body.indexOf("{", begStmt + 1);
+ }
+ if (begStmt < 0) // In "a{for}c", begStmt will be 1.
+ break;
+ var endStmt = body.indexOf("}", begStmt + 1); // In "a{for}c", endStmt will be 5.
+ if (endStmt < 0)
+ break;
+ emitSectionText(body.substring(endStmtPrev + 1, begStmt), funcText);
+ emitStatement(body.substring(begStmt, endStmt +1), state, funcText, tmplName, etc);
+ endStmtPrev = endStmt;
+ }
+ emitSectionText(body.substring(endStmtPrev + 1), funcText);
+ if (state.stack.length != 0)
+ throw new etc.ParseError(tmplName, state.line, "unclosed, unmatched statement(s): " + state.stack.join(","));
+ funcText.push("}}; TrimPath_Template_TEMP");
+ return funcText.join("");
+ }
+
+ var emitStatement = function(stmtStr, state, funcText, tmplName, etc) {
+ var parts = stmtStr.slice(1, -1).split(' ');
+ var stmt = etc.statementDef[parts[0]]; // Here, parts[0] == for/if/else/...
+ if (stmt == null) { // Not a real statement.
+ emitSectionText(stmtStr, funcText);
+ return;
+ }
+ if (stmt.delta < 0) {
+ if (state.stack.length <= 0)
+ throw new etc.ParseError(tmplName, state.line, "close tag does not match any previous statement: " + stmtStr);
+ state.stack.pop();
+ }
+ if (stmt.delta > 0)
+ state.stack.push(stmtStr);
+
+ if (stmt.paramMin != null &&
+ stmt.paramMin >= parts.length)
+ throw new etc.ParseError(tmplName, state.line, "statement needs more parameters: " + stmtStr);
+ if (stmt.prefixFunc != null)
+ funcText.push(stmt.prefixFunc(parts, state, tmplName, etc));
+ else
+ funcText.push(stmt.prefix);
+ if (stmt.suffix != null) {
+ if (parts.length <= 1) {
+ if (stmt.paramDefault != null)
+ funcText.push(stmt.paramDefault);
+ } else {
+ for (var i = 1; i < parts.length; i++) {
+ if (i > 1)
+ funcText.push(' ');
+ funcText.push(parts[i]);
+ }
+ }
+ funcText.push(stmt.suffix);
+ }
+ }
+
+ var emitSectionText = function(text, funcText) {
+ if (text.length <= 0)
+ return;
+ var nlPrefix = 0; // Index to first non-newline in prefix.
+ var nlSuffix = text.length - 1; // Index to first non-space/tab in suffix.
+ while (nlPrefix < text.length && (text.charAt(nlPrefix) == '\n'))
+ nlPrefix++;
+ while (nlSuffix >= 0 && (text.charAt(nlSuffix) == ' ' || text.charAt(nlSuffix) == '\t'))
+ nlSuffix--;
+ if (nlSuffix < nlPrefix)
+ nlSuffix = nlPrefix;
+ if (nlPrefix > 0) {
+ funcText.push('if (_FLAGS.keepWhitespace == true) _OUT.write("');
+ funcText.push(text.substring(0, nlPrefix).replace('\n', '\\n'));
+ funcText.push('");');
+ }
+ var lines = text.substring(nlPrefix, nlSuffix + 1).split('\n');
+ for (var i = 0; i < lines.length; i++) {
+ emitSectionTextLine(lines[i], funcText);
+ if (i < lines.length - 1)
+ funcText.push('_OUT.write("\\n");\n');
+ }
+ if (nlSuffix + 1 < text.length) {
+ funcText.push('if (_FLAGS.keepWhitespace == true) _OUT.write("');
+ funcText.push(text.substring(nlSuffix + 1).replace('\n', '\\n'));
+ funcText.push('");');
+ }
+ }
+
+ var emitSectionTextLine = function(line, funcText) {
+ var endExprPrev = -1;
+ while (endExprPrev + 1 < line.length) {
+ var begExpr = line.indexOf("${", endExprPrev + 1); // In "a${b}c", begExpr == 1
+ if (begExpr < 0)
+ break;
+ var endExpr = line.indexOf("}", begExpr + 2); // In "a${b}c", endExpr == 4; 2 == "${".length
+ if (endExpr < 0)
+ break;
+ emitText(line.substring(endExprPrev + 1, begExpr), funcText);
+ // Example: exprs == 'firstName|default:"John Doe"|capitalize'.split('|')
+ var exprArr = line.substring(begExpr + 2, endExpr).replace(/\|\|/g, "#@@#").split('|');
+ for (var k in exprArr)
+ exprArr[k] = exprArr[k].replace(/#@@#/g, '||');
+ funcText.push('_OUT.write(');
+ emitExpression(exprArr, exprArr.length - 1, funcText);
+ funcText.push(');');
+ endExprPrev = endExpr;
+ }
+ emitText(line.substring(endExprPrev + 1), funcText);
+ }
+
+ var emitText = function(text, funcText) {
+ if (text == null ||
+ text.length <= 0)
+ return;
+ text = text.replace(/\\/g, '\\\\');
+ text = text.replace(/"/g, '\\"');
+ funcText.push('_OUT.write("');
+ funcText.push(text);
+ funcText.push('");');
+ }
+
+ var emitExpression = function(exprArr, index, funcText) {
+ // Ex: foo|a:x|b:y1,y2|c:z1,z2 is emitted as c(b(a(foo,x),y1,y2),z1,z2)
+ var expr = exprArr[index]; // Ex: exprArr == [firstName,capitalize,default:"John Doe"]
+ if (index <= 0) { // Ex: expr == 'default:"John Doe"'
+ funcText.push(expr);
+ return;
+ }
+ var parts = expr.split(':');
+ funcText.push('_MODIFIERS["');
+ funcText.push(parts[0]); // The parts[0] is a modifier function name, like capitalize.
+ funcText.push('"](');
+ emitExpression(exprArr, index - 1, funcText);
+ if (parts.length > 1) {
+ funcText.push(',');
+ funcText.push(parts[1]);
+ }
+ funcText.push(')');
+ }
+
+ var cleanWhiteSpace = function(result) {
+ result = result.replace(/\t/g, " ");
+ result = result.replace(/\r\n/g, "\n");
+ result = result.replace(/\r/g, "\n");
+ result = result.replace(/^(.*\S)[ \t]+$/gm, "$1"); // Right trim.
+ return result;
+ }
+
+ // The DOM helper functions depend on DOM/DHTML, so they only work in a browser.
+ // However, these are not considered core to the engine.
+ //
+ TrimPath.parseDOMTemplate = function(elementId, optDocument, optEtc) {
+ if (optDocument == null)
+ optDocument = document;
+ var element = optDocument.getElementById(elementId);
+ var content = element.value; // Like textarea.value.
+ if (content == null)
+ content = element.innerHTML; // Like textarea.innerHTML.
+ content = content.replace(/</g, "<").replace(/>/g, ">");
+ return TrimPath.parseTemplate(content, elementId, optEtc);
+ }
+
+ TrimPath.processDOMTemplate = function(elementId, context, optFlags, optDocument, optEtc) {
+ return TrimPath.parseDOMTemplate(elementId, optDocument, optEtc).process(context, optFlags);
+ }
+}) ();
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