SourceMap

Installation

Usage

Overview

>>>importsourcemap>>>sourcemap.discover('...')'jquery.min.map'>>>index=sourcemap.loads('...')>>>index.lookup(line=10,column=10)<Token:dst_line=10dst_column=10src='jquery.js'src_line=50src_col=200name='lol'>

Get lines of context

# Load in our original minified file>>>minified=open('jquery.min.js').read()# Discover the path to the source map>>>map_path=sourcemap.discover(minified)# Read and parse our sourcemap>>>index=sourcemap.load(open(map_path))# Look up the line/column from the minified file>>>token=index.lookup(line=0,column=3040)# Grab the line from the original source that this token points to>>>source=open('jquery.js').readlines()>>>culprit=source[token.src_line]# 5 lines before>>>pre_context=source[token.src_line-5:token.src_line]# 5 lines after>>>post_context=source[token.src_line+1:token.src_line+6]

Compatibility