bibtex

I have this .bib file for reference management while writing my thesis in LaTeX: @article{garg2017patch, title={Patch testing in patients with suspected cosmetic dermatitis: A retrospective study}, author={Garg, Taru and Agarwal, Soumya and Chander, Ram and Singh, Aashim and Yadav, Pravesh}, journal={Journal of Cosmetic Dermatology}, year={2017}, publisher={Wiley Online Library} } @article{hauso2008neuroendocrine, title={Neuroendocrine tumor epidemiology}, author={Hauso, Oyvind and Gustafsson, Bjorn I and Kidd, Mark and Waldum, Helge L and Drozdov, Ignat and Chan, Anthony KC and Modlin, Irvin

By default (using the plain style) BibTeX orders citations alphabetically. How to order the citations by order of appearance in the document? Will Robertson There are three good answers to this question. Use the unsrt bibliography style, if you're happy with its formatting otherwise Use the makebst (link) tool to design your own bibliography style And my personal recommendation: Use the biblatex package (link) . It's the most complete and flexible bibliography tool in the LaTeX world. Using biblatex , you'd write something like \documentclass[12pt]{article} \usepackage[sorting=none]{biblatex}

For last few weeks, I am trying to write a parser for bibtex ( http://www.bibtex.org/Format/ ) file using flex and bison. $ cat raw.l %{ #include "raw.tab.h" %} value [\"\{][a-zA-Z0-9 .\t\{\} \"\\]*[\"\}] %% [a-zA-Z]* return(KEY); \" return(QUOTE); \{ return(OBRACE); \} return(EBRACE); ; return(SEMICOLON); [ \t]+ /* ignore whitespace */; {value} { yylval.sval = malloc(strlen(yytext)); strncpy(yylval.sval, yytext, strlen(yytext)); return(VALUE); } $ cat raw.y %{ #include <stdio.h> %} //Symbols. %union { char *sval; }; %token <sval> VALUE %token KEY %token OBRACE %token EBRACE %token QUOTE