BibTex: new parser (#2137)

added a bibtex parser that extracts identifiers of entries in bib-files

Units/parser-bibtex.r/bib-simple.d/expected.tags

@@ -0,0 +1,14 @@
+1957-doe_loc_ident	input.bib	/^@article{1957-doe_loc_ident,$/;"	a
+1959-rocket_exploration	input.bib	/^@INPROCEEDINGS{1959-rocket_exploration,$/;"	j
+1960-doe-location_splits	input.bib	/^@incollection{1960-doe-location_splits,$/;"	I
+1960-rocket_deep-exploration	input.bib	/^@conference{1960-rocket_deep-exploration,$/;"	c
+1960_conf_splits	input.bib	/^@proceedings{1960_conf_splits,$/;"	P
+1961-doe-diverse_splits	input.bib	/^@inbook{1961-doe-diverse_splits,$/;"	i
+1961_splits	input.bib	/^@techreport{1961_splits$/;"	t
+doe+rocket	input.bib	/^@Book{doe+rocket,$/;"	b
+doe_mastersth	input.bib	/^@mastersthesis{doe_mastersth,$/;"	M
+doe_mastersth_data	input.bib	/^@misc{doe_mastersth_data,$/;"	n
+doe_phd	input.bib	/^@phdthesis{doe_phd,$/;"	p
+man_loc_splits	input.bib	/^@manual{man_loc_splits,$/;"	m
+tiny_collect	input.bib	/^@booklet{tiny_collect,$/;"	B
+xx_thoughts	input.bib	/^@unpublished{xx_thoughts,$/;"	u

Units/parser-bibtex.r/bib-simple.d/input.bib

@@ -0,0 +1,97 @@
+% this is a comment that will be ignored
+
+@article{1957-doe_loc_ident,
+ author    = "John Doe,
+ title     = "Exploration of the 
+              Location-Identity Split",
+ journal   = "Journal of Splits",
+ year      =  1957,
+ volume    =  3
+}
+
+@Book{doe+rocket,
+ author    = "John Doe and Rocket Scientist",
+ title     = "Theory of Splits",
+ publisher = "Dover",
+ year      =  1964,
+ address   = "New York City",
+ edition   = "ninth Dover printing, tenth GPO printing"
+}
+
+@booklet{tiny_collect,
+  title    = "A tiny collection of stuff"
+}
+
+@conference{1960-rocket_deep-exploration,
+ author    = "Rocket Scientist",
+ title     = "Deep Exploration of the Singleton Split",
+ booktitle = "34th international conference of important stuff (ICIS)",
+ year      =  1960
+}
+
+@inbook{1961-doe-diverse_splits,
+  author    = "John Doe",
+  title     = "A comprehensive list of splits",
+  pages     = {13-39},
+  publisher = "Penguin Books",
+  year      = 1961
+}
+
+@incollection{1960-doe-location_splits,
+  author    = "John Doe",
+  title     = "Survey of location splits",
+  booktitle = "Current state of the art in computational methods",
+  publisher = "Penguin Books",
+  year      = 1960
+}
+
+@INPROCEEDINGS{1959-rocket_exploration,
+ author    = "Rocket Scientist",
+ title     = "Exploration of the 
+              Location-Singleton Split",
+ booktitle = "33th international conference of important stuff (ICIS)",
+ year      =  1959
+}
+
+@manual{man_loc_splits,
+  title  = "Introduction to Location Splits"
+}
+
+@mastersthesis{doe_mastersth,
+  author = "John Doe"
+  title  = "Evaluating location splits under identity constraints",
+  school = "School of Computer Science",
+  year   = 1955
+}
+
+@misc{doe_mastersth_data,
+  author       = "John Doe"
+  title        = "Dataset of location splits under identity constraints",
+  howpublished = "http://johndoe.edu/masterthesis/data",
+  year         = 1955
+}
+
+@phdthesis{doe_phd,
+  author = "John Doe"
+  title  = "Evaluating location splits under diverse constraints",
+  school = "School of Computer Science",
+  year   = 1958
+}
+
+@proceedings{1960_conf_splits,
+  title = "First international conference of splits",
+  year  = 1960
+}
+
+@techreport{1961_splits
+, author      = "Rocket Scientist"
+, title       = "An introduction to advanced splits"
+, institution = "School of Engineering"
+, year        = 1961
+}
+
+@unpublished{xx_thoughts,
+  author = "John Doe and Rocket Scientist",
+  title  = "Thoughts on the future of splits",
+  note   = "Heavily thought about"
+}

docs/news.rst

@@ -42,6 +42,7 @@ The following parsers have been added:
 * Autoconf
 * Automake
 * AutoIt
+* BibTex
 * Clojure
 * CMake *optlib*
 * CSS

main/parsers_p.h

@@ -54,6 +54,7 @@
 	AwkParser, \
 	BasicParser, \
 	BetaParser, \
+  	BibtexParser, \
 	ClojureParser, \
 	CMakeParser, \
 	CParser, \