1 // An implementation of Enano's template compiler in Javascript. Same exact API

     2 // as the PHP version - constructor accepts text, then the assign_vars, assign_bool, and run methods.

     3 

     4 function templateParser(text)

     5 {

     6   this.tpl_code    = text;

     7   this.tpl_strings = new Object();

     8   this.tpl_bool    = new Object();

     9   this.assign_vars = __tpAssignVars;

    10   this.assign_bool = __tpAssignBool;

    11   this.run         = __tpRun;

    12 }

    13 

    14 function __tpAssignVars(vars)

    15 {

    16   for(var i in vars)

    17   {

    18     this.tpl_strings[i] = vars[i];

    19   }

    20 }

    21 

    22 function __tpAssignBool(vars)

    23 {

    24   for(var i in vars)

    25   {

    26     this.tpl_bool[i] = ( vars[i] ) ? true : false; 

    27   }

    28 }

    29 

    30 function __tpRun()

    31 {

    32   if(typeof(this.tpl_code) == 'string')

    33   {

    34     tpl_code = __tpCompileTemplate(this.tpl_code);

    35     try {

    36       compiled = eval(tpl_code);

    37     }

    38     catch(e)

    39     {

    40       alert(e);

    41       aclDebug(tpl_code);

    42     }

    43     return compiled;

    44   }

    45   return false;

    46 }

    47 

    48 function __tpCompileTemplate(code)

    49 {

    50   // Compile plaintext/template code to javascript code

    51   code = code.replace(/\\/g, "\\\\");

    52   code = code.replace(/\'/g,  "\\'");

    53   code = code.replace(/\"/g,  '\\"');

    54   code = code.replace(new RegExp(unescape('%0A'), 'g'), '\\n');

    55   code = "'" + code + "'";

    56   code = code.replace(/\{([A-z0-9_-]+)\}/ig, "' + this.tpl_strings['$1'] + '");

    57   code = code.replace(/\<!-- BEGIN ([A-z0-9_-]+) --\>([\s\S]*?)\<!-- BEGINELSE \1 --\>([\s\S]*?)\<!-- END \1 --\>/ig, "' + ( ( this.tpl_bool['$1'] == true ) ? '$2' : '$3' ) + '");

    58   code = code.replace(/\<!-- BEGIN ([A-z0-9_-]+) --\>([\s\S]*?)\<!-- END \1 --\>/ig, "' + ( ( this.tpl_bool['$1'] == true ) ? '$2' : '' ) + '");

    59   return code;

    60 }

    61 

    62 function __tpExtractVars(code)

    63 {

    64   code = code.replace('\\', "\\\\");

    65   code = code.replace("'",  "\\'");

    66   code = code.replace('"',  '\\"');

    67   code = code.replace(new RegExp(unescape('%0A'), 'g'), "\\n");

    68   code = code.match(/\<!-- VAR ([A-z0-9_-]+) --\>([\s\S]*?)\<!-- ENDVAR \1 -->/g);

    69   code2 = '';

    70   for(var i in code)

    71     if(typeof(code[i]) == 'string')

    72       code2 = code2 + code[i];

    73   code = code2.replace(/\<!-- VAR ([A-z0-9_-]+) --\>([\s\S]*?)\<!-- ENDVAR \1 -->/g, "'$1' : \"$2\",");

    74   code = '( { ' + code + ' "________null________" : false } )';

    75   vars = eval(code);

    76   return vars;

    77 }

    78