X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=lib%2Fexamples%2Flisterrors.lyx;h=aed3ecb92e52282f6787ad788a86cab76746a318;hb=a860d18b5a722606c68fb1a4ec22ffe3e99792e6;hp=48999af139fe9902df484d03dfdd64e488c23e12;hpb=d246375c2c65154fccacac6a6159db3fa606263f;p=lyx.git diff --git a/lib/examples/listerrors.lyx b/lib/examples/listerrors.lyx index 48999af139..aed3ecb92e 100644 --- a/lib/examples/listerrors.lyx +++ b/lib/examples/listerrors.lyx @@ -1,6 +1,8 @@ -#LyX 1.2 created this file. For more info see http://www.lyx.org/ -\lyxformat 220 -\textclass literate-article +#LyX 2.1 created this file. For more info see http://www.lyx.org/ +\lyxformat 474 +\begin_document +\begin_header +\textclass article \begin_preamble % % ps2pdf stuff @@ -15,103 +17,172 @@ \def\nwendcode{\endtrivlist \endgroup \vfil\penalty10\vfilneg} \let\nwdocspar=\smallbreak \end_preamble +\use_default_options false +\begin_modules +noweb +\end_modules +\maintain_unincluded_children false \language english +\language_package default \inputencoding auto -\fontscheme pslatex +\fontencoding global +\font_roman times +\font_sans helvet +\font_typewriter courier +\font_math auto +\font_default_family default +\use_non_tex_fonts false +\font_sc false +\font_osf false +\font_sf_scale 100 +\font_tt_scale 100 \graphics default +\default_output_format pdf +\output_sync 0 +\bibtex_command default +\index_command default \paperfontsize default -\spacing single -\papersize Default -\paperpackage a4 -\use_geometry 0 -\use_amsmath 0 -\use_natbib 0 -\use_numerical_citations 0 +\spacing single +\use_hyperref false +\papersize default +\use_geometry false +\use_package amsmath 0 +\use_package amssymb 0 +\use_package cancel 0 +\use_package esint 0 +\use_package mathdots 1 +\use_package mathtools 0 +\use_package mhchem 1 +\use_package stackrel 0 +\use_package stmaryrd 0 +\use_package undertilde 0 +\cite_engine basic +\cite_engine_type default +\biblio_style plain +\use_bibtopic false +\use_indices false \paperorientation portrait +\suppress_date false +\justification true +\use_refstyle 0 +\index Index +\shortcut idx +\color #008000 +\end_index \secnumdepth 3 \tocdepth 3 \paragraph_separation indent -\defskip medskip +\paragraph_indentation default \quotes_language english -\quotes_times 2 \papercolumns 1 \papersides 1 \paperpagestyle default +\tracking_changes false +\output_changes false +\html_math_output 0 +\html_css_as_file 0 +\html_be_strict false +\end_header -\layout Title +\begin_body +\begin_layout Title LyX listerrors: -\newline +\begin_inset Newline newline +\end_inset + rewritten in Python -\layout Author +\end_layout +\begin_layout Author Kayvan A. Sylvan -\newline +\begin_inset Newline newline +\end_inset + + +\begin_inset Flex URL +status collapsed -\begin_inset LatexCommand \url{mailto:kayvan@sylvan.com} +\begin_layout Plain Layout -\end_inset +mailto:kayvan@sylvan.com +\end_layout +\end_inset -\layout Date +\end_layout + +\begin_layout Date 3/15/2002 -\layout Abstract +\end_layout +\begin_layout Abstract The listerrors program used to be compiled as a C program and installed as -\emph on +\emph on BINDIR/listerrors -\emph default +\emph default along with LyX in order to perform some simple re-formatting of noweb and GCC error messages. This document describes and implements the Python version of the same program. -\layout Standard - +\end_layout -\begin_inset LatexCommand \tableofcontents{} +\begin_layout Standard +\begin_inset CommandInset toc +LatexCommand tableofcontents -\end_inset +\end_inset -\layout Section +\end_layout +\begin_layout Section Introduction -\layout Standard +\end_layout -The motivation for this program was Bugzilla bug 190 +\begin_layout Standard +The motivation for this program was LyX bug 190 \begin_inset Foot -collapsed true - -\layout Standard +status collapsed +\begin_layout Plain Layout Visit -\begin_inset LatexCommand \url{http://bugzilla.lyx.org/show_bug.cgi?id=190} +\begin_inset Flex URL +status collapsed + +\begin_layout Plain Layout -\end_inset +http://www.lyx.org/trac/ticket/190 +\end_layout + +\end_inset for the details. -\end_inset +\end_layout + +\end_inset dealing with the \begin_inset Quotes eld -\end_inset +\end_inset listerrors \begin_inset Quotes erd -\end_inset +\end_inset executable. -\layout Standard +\end_layout +\begin_layout Standard What is \begin_inset Quotes eld -\end_inset +\end_inset listerrors \begin_inset Quotes erd -\end_inset +\end_inset ? Usually, LyX has great support for parsing of error messages. For each error in the log file, LyX pops up an error box at that location @@ -120,736 +191,1537 @@ listerrors (similar to LaTeX errors). When dealing with Literate Programs, you have \begin_inset Quotes eld -\end_inset +\end_inset noweb \begin_inset Foot -collapsed true - -\layout Standard +status collapsed +\begin_layout Plain Layout See -\begin_inset LatexCommand \url{http://www.eecs.harvard.edu/~nr/noweb} +\begin_inset Flex URL +status collapsed + +\begin_layout Plain Layout -\end_inset +http://www.eecs.harvard.edu/~nr/noweb +\end_layout + +\end_inset for more information about noweb. -\end_inset +\end_layout + +\end_inset \begin_inset Quotes erd -\end_inset +\end_inset as well as gcc error messages (and potentially others). The listerrors program attempts to standardize these error messages to a format that LyX can parse and react to. -\layout Standard +\end_layout +\begin_layout Standard In a nutshell, the problems with the old implementation of listerrors that bug 190 refers to were:: -\layout Enumerate +\end_layout +\begin_layout Enumerate It was a C program and it was installed in the user path in the same directory as LyX. Having such a generically named binary in, for example, -\emph on +\emph on /usr/bin -\emph default +\emph default , was potentially confusing. -\layout Enumerate +\end_layout +\begin_layout Enumerate It required that noweb be installed on the compiling machine (the source was extracted by noweb from -\emph on +\emph on SRCDIR/examples/Literate.lyx -\emph default +\emph default , compiled and installed by \begin_inset Quotes eld -\end_inset +\end_inset make install \begin_inset Quotes erd -\end_inset +\end_inset ). -\layout Standard +\end_layout +\begin_layout Standard The new version deals with these problems in the following fashion: -\layout Enumerate +\end_layout +\begin_layout Enumerate Both the example file (this document) and the program are to be added to the LyX CVS repository. -\layout Enumerate +\end_layout +\begin_layout Enumerate The program itself will be installed in -\emph on +\emph on SHAREDIR/lyx/scripts -\emph default +\emph default , along with other LyX-specific helper scripts. -\layout Standard +\end_layout +\begin_layout Standard In the design and implementation of this new \begin_inset Quotes eld -\end_inset +\end_inset listerrors \begin_inset Quotes erd -\end_inset +\end_inset , the Python \begin_inset Foot -collapsed true - -\layout Standard +status collapsed +\begin_layout Plain Layout See the Python home page ( -\begin_inset LatexCommand \url{http://www.python.org} +\begin_inset Flex URL +status collapsed + +\begin_layout Plain Layout -\end_inset +http://www.python.org +\end_layout + +\end_inset ) for more information. -\end_inset +\end_layout + +\end_inset language was chosen since it is fully multi-platform and provides a very uniform and easy to read syntax. This re-write also simplifies the code for \begin_inset Quotes eld -\end_inset +\end_inset listerrors \begin_inset Quotes erd -\end_inset +\end_inset greatly. Python is installed by default on all modern Linux systems and is freely available for all other platforms. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline -#!/usr/bin/python -\newline +\end_layout + +\begin_layout Plain Layout + +#!/usr/bin/python -tt +\end_layout + +\begin_layout Plain Layout + """reformat noweb and compiler errors for LyX. -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline Expects to read from stdin and output to stdout. -\newline +\end_layout + +\begin_layout Plain Layout + """ -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline __author__ = "Kayvan A. Sylvan " -\newline -__date__ = "$Date: 2002/03/25 23:29:30 $" -\newline -__version__ = "$Revision: 1.2 $" -\newline +\end_layout + +\begin_layout Plain Layout + +__date__ = "$Date: 2005/07/18 09:42:26 $" +\end_layout + +\begin_layout Plain Layout + +__version__ = "$Revision: 1.5 $" +\end_layout + +\begin_layout Plain Layout + __credits__ = """Edmar Wienskoski Jr. -\newline +\end_layout + +\begin_layout Plain Layout + original Literate support for LyX. -\newline +\end_layout + +\begin_layout Plain Layout + Bernard Michael Hurley -\newline +\end_layout + +\begin_layout Plain Layout + modifications to original listerrors.""" -\newline -__copyright__ = "Copyright 2002 - The LyX team." -\newline +\end_layout + +\begin_layout Plain Layout + +__copyright__ = "Copyright 2002 - Kayvan Sylvan." +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline import sys, string -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline <> -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline if __name__ == "__main__": -\newline +\end_layout + +\begin_layout Plain Layout + main() -\newline +\end_layout + +\begin_layout Plain Layout + @ -\layout Section +\end_layout + +\end_inset + +\end_layout + +\begin_layout Section LaTeX style error message -\layout Standard +\end_layout +\begin_layout Standard The following function mimics the TeX error message format. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + def write_error(msg, tool = "noweb", line_number = 1): -\newline +\end_layout + +\begin_layout Plain Layout + """Write out the given message in TeX error style. -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline called like: write_error(msg, tool, line_number).""" -\newline +\end_layout + +\begin_layout Plain Layout + print "! Build Error: ==> %s ==> -\backslash +\backslash n" % (tool), -\newline +\end_layout + +\begin_layout Plain Layout + print " ... -\backslash +\backslash n -\backslash +\backslash nl.%d ... -\backslash +\backslash n" % (line_number), -\newline +\end_layout + +\begin_layout Plain Layout + if type(msg) == type("str"): # simple string -\newline +\end_layout + +\begin_layout Plain Layout + print msg -\newline +\end_layout + +\begin_layout Plain Layout + else: # some kind of list (sequence or tuple) -\newline +\end_layout + +\begin_layout Plain Layout + for m in msg: -\newline +\end_layout + +\begin_layout Plain Layout + if m != "": print m, -\newline +\end_layout + +\begin_layout Plain Layout + print -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline @ %def write_error -\layout Section +\end_layout + +\end_inset + +\end_layout + +\begin_layout Section Filtering errors -\layout Standard +\end_layout +\begin_layout Standard The only complication in our filtering code is that some parsers might need to push back lines that are read in to be read again later. We solve this problem by implementing a \begin_inset Quotes eld -\end_inset +\end_inset getline \begin_inset Quotes erd -\end_inset +\end_inset and \begin_inset Quotes eld -\end_inset +\end_inset pushline \begin_inset Quotes erd -\end_inset +\end_inset set of functions: -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + __lines = [] # lines pushed back -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline def getline(file = sys.stdin): -\newline +\end_layout + +\begin_layout Plain Layout + """read a line from internal stack or from file. -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline optional file argument defaults to sys.stdin.""" -\newline +\end_layout + +\begin_layout Plain Layout + global __lines -\newline +\end_layout + +\begin_layout Plain Layout + lines = __lines -\newline +\end_layout + +\begin_layout Plain Layout + if lines: -\newline +\end_layout + +\begin_layout Plain Layout + line = lines.pop() -\newline +\end_layout + +\begin_layout Plain Layout + else: -\newline +\end_layout + +\begin_layout Plain Layout + line = file.readline() -\newline +\end_layout + +\begin_layout Plain Layout + return line -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline @ %def getline -\layout Standard +\end_layout + +\end_inset + + +\end_layout +\begin_layout Standard And now for the corresponding pushline function: -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + def pushline(line): -\newline +\end_layout + +\begin_layout Plain Layout + "push a line onto the pushback stack." -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout + global __lines -\newline +\end_layout + +\begin_layout Plain Layout + lines = __lines -\newline - lines.append(line) -\newline +\end_layout + +\begin_layout Plain Layout + +lines.append(line) +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline @ %def pushline -\layout Standard +\end_layout + +\end_inset + +\end_layout + +\begin_layout Standard The main() entry point function is extremely simple. Note that this version of \begin_inset Quotes eld -\end_inset +\end_inset listerrors \begin_inset Quotes erd -\end_inset +\end_inset takes no options and simply filters, attempting simply to match against the known error message patterns. The listerrors C program handled a single-character command-line argument that the current code no longer needs. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + def main(): -\newline +\end_layout + +\begin_layout Plain Layout + """Entry point for listerrors. Takes no options. -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline Reads stdin and writes to stdout. Filter errors""" -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline while 1: -\newline +\end_layout + +\begin_layout Plain Layout + line = getline() -\newline +\end_layout + +\begin_layout Plain Layout + if line == "": break -\newline +\end_layout + +\begin_layout Plain Layout + <> -\newline +\end_layout + +\begin_layout Plain Layout + @ %def main -\layout Standard +\end_layout +\end_inset + + +\end_layout + +\begin_layout Standard For each line read in, we need to find out if it matches any of our tools (noweb, gcc, etc.) and act accordingly. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout + try_patterns_dispatch = [ noweb_try, gcc_try, xlc_try ] -\newline +\end_layout + +\begin_layout Plain Layout + for predicate in try_patterns_dispatch: -\newline +\end_layout + +\begin_layout Plain Layout + if predicate(line): break -\newline +\end_layout + +\begin_layout Plain Layout + @ -\layout Section +\end_layout + +\end_inset + + +\end_layout +\begin_layout Section Different Error Formats -\layout Standard +\end_layout +\begin_layout Standard The following sections handle the various error message formats that we recognize in this program. -\layout Subsection +\end_layout +\begin_layout Subsection noweb errors -\layout Standard +\end_layout +\begin_layout Standard Noweb errors are output on a single line, so examining just the current line is enough. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + def noweb_try(line): -\newline +\end_layout + +\begin_layout Plain Layout + """see if line is a noweb error. -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline Returns 1 on success, 0 otherwise. Outputs on stdout.""" -\newline +\end_layout + +\begin_layout Plain Layout + retval = 0 -\newline +\end_layout + +\begin_layout Plain Layout + <> -\newline +\end_layout + +\begin_layout Plain Layout + <> -\newline +\end_layout + +\begin_layout Plain Layout + <> -\newline +\end_layout + +\begin_layout Plain Layout + return retval -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline @ %def noweb_try -\layout Standard +\end_layout + +\end_inset + + +\end_layout +\begin_layout Standard First, we look for the \begin_inset Quotes eld -\end_inset +\end_inset unescaped < < in documentation chunk \begin_inset Quotes erd -\end_inset +\end_inset message. This is the only message with an associated line number from noweb. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + if string.find(line, ": unescaped << in documentation chunk") != -1: -\newline +\end_layout + +\begin_layout Plain Layout + line_parts = string.split(line, ':') -\newline +\end_layout + +\begin_layout Plain Layout + num_str = line_parts[1] -\newline +\end_layout + +\begin_layout Plain Layout + num_len = len(num_str) -\newline +\end_layout + +\begin_layout Plain Layout + i = 0 -\newline +\end_layout + +\begin_layout Plain Layout + while i < num_len and (num_str[i] in string.digits): i = i + 1 -\newline +\end_layout + +\begin_layout Plain Layout + if i == num_len: -\newline +\end_layout + +\begin_layout Plain Layout + write_error(":" + line_parts[2], "noweb", int(num_str)) -\newline +\end_layout + +\begin_layout Plain Layout + retval = 1 -\newline +\end_layout + +\begin_layout Plain Layout + @ -\layout Standard +\end_layout + +\end_inset -Some noweb messages are simply about undefined scraps. + +\end_layout + +\begin_layout Standard +Some noweb messages are simply about undefined chunks. These can be seen by looking for matching double-angle-brackets. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout + if (not retval): -\newline +\end_layout + +\begin_layout Plain Layout + left = string.find(line, "<<") -\newline +\end_layout + +\begin_layout Plain Layout + if (left != -1) and ((left + 2) < len(line)) and -\backslash +\backslash + +\end_layout + +\begin_layout Plain Layout -\newline (string.find(line[left+2:], ">>") != -1): -\newline +\end_layout + +\begin_layout Plain Layout + write_error(line, "noweb"); -\newline +\end_layout + +\begin_layout Plain Layout + retval = 1; -\newline +\end_layout + +\begin_layout Plain Layout + @ -\layout Standard +\end_layout + +\end_inset + + +\end_layout +\begin_layout Standard Finally, here is an additional list of explicit strings to check for. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + if (not retval): -\newline +\end_layout + +\begin_layout Plain Layout + msgs_to_try = ("couldn't open file", -\newline +\end_layout + +\begin_layout Plain Layout + "couldn't open temporary file", -\newline +\end_layout + +\begin_layout Plain Layout + "error writing temporary file", -\newline +\end_layout + +\begin_layout Plain Layout + "ill-formed option", -\newline +\end_layout + +\begin_layout Plain Layout + "unknown option", -\newline +\end_layout + +\begin_layout Plain Layout + "Bad format sequence", -\newline +\end_layout + +\begin_layout Plain Layout + "Can't open output file", -\newline +\end_layout + +\begin_layout Plain Layout + "Can't open temporary file", -\newline +\end_layout + +\begin_layout Plain Layout + "Capacity exceeded:", -\newline +\end_layout + +\begin_layout Plain Layout + "Ignoring unknown option -", -\newline +\end_layout + +\begin_layout Plain Layout + "This can't happen:", -\newline +\end_layout + +\begin_layout Plain Layout + "non-numeric line number in") -\newline +\end_layout + +\begin_layout Plain Layout + for msg in msgs_to_try: -\newline +\end_layout + +\begin_layout Plain Layout + if string.find(line, msg) != -1: -\newline +\end_layout + +\begin_layout Plain Layout + write_error(line, "noweb") -\newline +\end_layout + +\begin_layout Plain Layout + retval = 1 -\newline +\end_layout + +\begin_layout Plain Layout + break -\newline +\end_layout + +\begin_layout Plain Layout + @ -\layout Subsection +\end_layout +\end_inset + + +\end_layout + +\begin_layout Subsection gcc errors -\layout Standard +\end_layout +\begin_layout Standard The gcc errors can be multi-line, with the following format: -\layout LyX-Code +\end_layout +\begin_layout LyX-Code foo.c: In function `main': -\newline +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout + foo.c:3: `bar' undeclared (first use in this function) -\newline +\end_layout + +\begin_layout Plain Layout + foo.c:3: (Each undeclared identifier is reported only once -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout + foo.c:3: for each function it appears in.) -\newline +\end_layout + +\begin_layout Plain Layout + foo.c:3: parse error before `x' -\layout Standard +\end_layout +\end_inset + + +\end_layout + +\begin_layout Standard In order to parse this, the gcc error handler has to look ahead and return any and all lines that do not match the expected pattern. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + def gcc_try(line): -\newline +\end_layout + +\begin_layout Plain Layout + """See if line is a gcc error. Read ahead to handle all the lines. -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline Returns 1 on success, 0 otherwise. Outputs on stdout.""" -\newline +\end_layout + +\begin_layout Plain Layout + retval = 0 -\newline +\end_layout + +\begin_layout Plain Layout + <> -\newline +\end_layout + +\begin_layout Plain Layout + return retval -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline @ %def gcc_try -\layout Standard +\end_layout + +\end_inset + +\end_layout + +\begin_layout Standard The error message starts with a gcc header (as above) without an associated line number. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + first_space = string.find(line, ' ') -\newline +\end_layout + +\begin_layout Plain Layout + if first_space > 1: # The smallest would be "X: " -\newline +\end_layout + +\begin_layout Plain Layout + if line[first_space - 1] == ':': -\newline +\end_layout + +\begin_layout Plain Layout + header_to_see = line[:first_space - 1] -\newline +\end_layout + +\begin_layout Plain Layout + next_line = getline() -\newline +\end_layout + +\begin_layout Plain Layout + if next_line and next_line[:first_space - 1] == header_to_see: -\newline +\end_layout + +\begin_layout Plain Layout + num_end = first_space -\newline +\end_layout + +\begin_layout Plain Layout + while next_line[num_end] in string.digits: num_end = num_end + 1 -\newline +\end_layout + +\begin_layout Plain Layout + if num_end > first_space: # good! -\newline +\end_layout + +\begin_layout Plain Layout + <> -\newline +\end_layout + +\begin_layout Plain Layout + else: # oops! Not a gcc error. -\newline +\end_layout + +\begin_layout Plain Layout + pushline(next_line) -\newline +\end_layout + +\begin_layout Plain Layout + elif next_line: -\newline +\end_layout + +\begin_layout Plain Layout + pushline(next_line) # return this line to input stream -\newline +\end_layout + +\begin_layout Plain Layout + @ -\layout Standard +\end_layout + +\end_inset + + +\end_layout +\begin_layout Standard At the point in the code that we know that we are in the middle of an error message, we do the following: -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + num_str = next_line[first_space:num_end] -\newline +\end_layout + +\begin_layout Plain Layout + msgs = [line[first_space:]] -\newline +\end_layout + +\begin_layout Plain Layout + msgs.append(next_line[num_end + 1:]) -\newline +\end_layout + +\begin_layout Plain Layout + header_to_see = next_line[:num_end] -\newline +\end_layout + +\begin_layout Plain Layout + next_line = getline() -\newline +\end_layout + +\begin_layout Plain Layout + while next_line and next_line[:num_end] == header_to_see: -\newline +\end_layout + +\begin_layout Plain Layout + msgs.append(next_line[num_end + 1:]) -\newline +\end_layout + +\begin_layout Plain Layout + next_line = getline() -\newline +\end_layout + +\begin_layout Plain Layout + if next_line: pushline(next_line) -\newline +\end_layout + +\begin_layout Plain Layout + write_error(msgs, "gcc", int(num_str)) -\newline +\end_layout + +\begin_layout Plain Layout + retval = 1 -\newline +\end_layout + +\begin_layout Plain Layout + @ -\layout Subsection +\end_layout + +\end_inset + + +\end_layout +\begin_layout Subsection xlc errors -\layout Standard +\end_layout +\begin_layout Standard A xlc error message is easy to identify. Every error message starts with a quoted string with no spaces, a comma, a space, the word \begin_inset Quotes eld -\end_inset +\end_inset line \begin_inset Quotes erd -\end_inset +\end_inset , a space, and some variable text. The following routine tests if a given buffer line matches this criteria (this code would probably be simpler if I used the \begin_inset Quotes eld -\end_inset +\end_inset re \begin_inset Quotes erd -\end_inset +\end_inset regexp module, but we don't really need the full regular expression engine here). -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + def xlc_try(line): -\newline +\end_layout + +\begin_layout Plain Layout + """see if line is an xlc error. -\newline +\end_layout + +\begin_layout Plain Layout + +\end_layout + +\begin_layout Plain Layout -\newline Returns 1 on success, 0 otherwise. Outputs on stdout.""" -\newline +\end_layout + +\begin_layout Plain Layout + retval = 0 -\newline +\end_layout + +\begin_layout Plain Layout + if line[0] == '"': # This is the first character of all xlc errors -\newline +\end_layout + +\begin_layout Plain Layout + next_quote = string.find(line, '"', 1) -\newline +\end_layout + +\begin_layout Plain Layout + first_space = string.find(line, ' ') -\newline +\end_layout + +\begin_layout Plain Layout + if (next_quote != -1) and (first_space > next_quote): # no space inisde quotes -\newline +\end_layout + +\begin_layout Plain Layout + if line[first_space - 1:first_space + 6] == ", line ": -\newline +\end_layout + +\begin_layout Plain Layout + num_start = num_end = first_space + 6 -\newline +\end_layout + +\begin_layout Plain Layout + while line[num_end] in string.digits: num_end = num_end + 1 -\newline +\end_layout + +\begin_layout Plain Layout + if num_end > num_start: -\newline +\end_layout + +\begin_layout Plain Layout + write_error(line, "xlc", int(line[num_start : num_end])) -\newline +\end_layout + +\begin_layout Plain Layout + retval = 1 -\newline +\end_layout + +\begin_layout Plain Layout + return retval -\newline +\end_layout + +\begin_layout Plain Layout + -\newline +\end_layout + +\begin_layout Plain Layout + @ %def xlc_try -\layout Section +\end_layout + +\end_inset + + +\end_layout +\begin_layout Section Extracting the code -\layout Standard +\end_layout +\begin_layout Standard This project can be tangled from LyX if you set your \begin_inset Quotes eld -\end_inset +\end_inset Program \begin_inset Quotes erd -\end_inset +\end_inset - convertor to call a generic script that always extracts a scrap named -\family typewriter + convertor to call a generic script that always extracts a chunk named +\family typewriter build-script -\family default +\family default and executes it. Here is an example of such a generic script: -\layout LyX-Code +\end_layout +\begin_layout LyX-Code #!/bin/sh -\newline -notangle -Rbuild-script $1 | env NOWEB_SOURCE=$1 sh -\layout Standard +\end_layout +\begin_layout LyX-Code +notangle -Rbuild-script $1 | env NOWEB_SOURCE=$1 NOWEB_OUTPUT_DIR=$2 sh +\end_layout + +\begin_layout Standard This section defines our build-script, which extracts the code. -\layout Scrap +\end_layout + +\begin_layout Standard +\begin_inset ERT +status open + +\begin_layout Plain Layout <>= -\newline +\end_layout + +\begin_layout Plain Layout + #!/bin/sh -\newline +\end_layout + +\begin_layout Plain Layout + if [ -z "$NOWEB_SOURCE" ]; then NOWEB_SOURCE=listerrors.nw; fi -\newline -notangle -Rlisterrors ${NOWEB_SOURCE} > listerrors -\newline -chmod +x listerrors -\newline +\end_layout + +\begin_layout Plain Layout + +if [ -z "$NOWEB_OUTPUT_DIR" ]; then NOWEB_OUTPUT_DIR=.; fi +\end_layout + +\begin_layout Plain Layout + +notangle -Rlisterrors ${NOWEB_SOURCE} > ${NOWEB_OUTPUT_DIR}/listerrors +\end_layout + +\begin_layout Plain Layout + +chmod +x ${NOWEB_OUTPUT_DIR}/listerrors +\end_layout + +\begin_layout Plain Layout + @ -\layout Section +\end_layout + +\end_inset + + +\end_layout +\begin_layout Section Indices -\layout Standard +\end_layout +\begin_layout Standard This section provides cross-references into the rest of the program. -\layout Subsection +\end_layout +\begin_layout Subsection Macros -\layout Standard - +\end_layout +\begin_layout Standard \begin_inset ERT -status Collapsed +status collapsed + +\begin_layout Plain Layout -\layout Standard -\backslash +\backslash nowebchunks -\end_inset +\end_layout +\end_inset -\layout Subsection -Identifiers -\layout Standard +\end_layout +\begin_layout Subsection +Identifiers +\end_layout +\begin_layout Standard \begin_inset ERT -status Collapsed +status collapsed -\layout Standard +\begin_layout Plain Layout -\backslash + +\backslash nowebindex -\end_inset +\end_layout + +\end_inset + +\end_layout -\the_end +\end_body +\end_document