KevinMidboe/linguist
1
0
Fork 0
mirror of https://github.com/KevinMidboe/linguist.git synced 2025-10-29 17:50:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

More robust heuristics for .m files and 3 new Matlab tests. Support for Obj-C detection fully intact; all tests pass. Detection of Obj-C keywords @implementation, @property, @interface, and @synthesize removed to avoid possible conflicts with user-created Matlab function handles. Only @end is needed, which is not valid in Matlab. Matlab class files supported. Comments preceded by whitespace detected for Obj-C and Matlab.

Browse Source 
Signed-off-by: Andrew D. Horchler <adh9@case.edu>
This commit is contained in:
Andrew D. Horchler
2012-05-08 18:29:34 -04:00
parent f0eace7f86
commit 354e1fc85e
5 changed files with 90 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
lib/linguist/blob_helper.rb
View File

@@ -451,24 +451,26 @@ module Linguist
# Internal: Guess language of .m files.
#
# Objective-C heuristics:
# * Keywords
# * Keywords ("#import", "#include", "#ifdef", #define, "@end") or "//" and opening "\*" comments
#
# Matlab heuristics:
# * Leading function keyword
# * Leading "function " of "classdef " keyword
# * "%" comments
#
# Note: All "#" keywords, e.g., "#import", are guaranteed to be Objective-C. Because the ampersand
# is used to created function handles and anonymous functions in Matlab, most "@" keywords are not
# safe heuristics. However, "end" is a reserved term in Matlab and can't be used to create a valid
# function handle. Because @end is required to close any @implementation, @property, @interface,
# @synthesize, etc. directive in Objective-C, only @end needs to be checked for.
#
# Returns a Language.
def guess_m_language
# Objective-C keywords
if lines.grep(/^#import|@(interface|implementation|property|synthesize|end)/).any?
# Objective-C keywords or comments
if lines.grep(/^#(import|include|ifdef|define)|@end/).any? || lines.grep(/^\s*\/\//).any? || lines.grep(/^\s*\/\*/).any?
Language['Objective-C']
# File function
elsif lines.first.to_s =~ /^function /
Language['Matlab']
# Matlab comment
elsif lines.grep(/^%/).any?
# Matlab file function or class or comments
elsif lines.first.grep(/^\s*(function |classdef )/).any? || lines.grep(/^\s*%/).any?
Language['Matlab']
# Fallback to Objective-C, don't want any Matlab false positives