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File: test/
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: Grammar Template
Template engine in PHP and other languages
Author: By
Last change:
Date: 2 years ago
Size: 1,733 bytes


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#!/usr/bin/env python import os, sys import pprint def import_module(name, path): import imp try: mod_fp, mod_path, mod_desc = imp.find_module(name, [path]) mod = getattr( imp.load_module(name, mod_fp, mod_path, mod_desc), name ) except ImportError as exc: mod = None sys.stderr.write("Error: failed to import module ({})".format(exc)) finally: if mod_fp: mod_fp.close() return mod # import the engine (as a) module, probably you will want to place this in another dir/package GrammarTemplate = import_module('GrammarTemplate', os.path.join(os.path.dirname(__file__), '../src/python/')) if not GrammarTemplate: print ('Could not load the GrammarTemplate Module') sys.exit(1) else: pass def echo( s='' ): print (s) echo('GrammarTemplate.VERSION = ' + GrammarTemplate.VERSION) echo( ) tpl = "SELECT <>[, <*>]\nFROM <table.from>[, <*table.from>][\nWHERE (<?required.where>) AND (<?condition.where>)][\nWHERE <?required.where><?!condition.where>][\nWHERE <?!required.where><?condition.where>][\nGROUP BY <?group>[, <*group>]][\nHAVING (<?required.having>) AND (<?condition.having>)][\nHAVING <?required.having><?!condition.having>][\nHAVING <?!required.having><?condition.having>][\nORDER BY <?order>[, <*order>]][\nLIMIT <offset|0>, <?count>]" sql = GrammarTemplate(tpl) echo("input template:") echo(tpl) echo( ) echo("output:") echo(sql.render({ 'column' : { 'select' : [ 'field1', 'field2', 'field3', 'field4' ] }, 'table' : { 'from' : [ 'tbl1', 'tbl2' ] }, 'condition' : { 'where' : 'field1=1 AND field2=2', 'having' : 'field3=1 OR field4=2' }, 'count' : 5 }))