""" MoinMoin Processor for abc format music syntax using abcm2ps, abc2midi Copyright (c) 2004 by Nathan Whitehead All rights reserved, see COPYING for details. (GPL) """ Dependencies = ["time"] import string, sys, os, re, sha from MoinMoin import config class Parser: """ a noop parser """ def __init__(self, raw, request, **kw): self.raw = raw self.request = request # save call arguments for later use in format # Set these according to local environment self.config_cache_dir='/home/nico/public_html/lakisawiki-666/abcps' self.config_cache_url=self.request.cfg.url_prefix+'/abcps' self.config_tmp_dir='/tmp' self.config_external_abc2ps='/usr/bin/abcm2ps' self.config_external_pstopnm='/usr/bin/pstopnm' self.config_external_gs='/usr/bin/gs' self.config_external_pnmcat='/usr/bin/pnmcat' self.config_external_pnmcrop='/usr/bin/pnmcrop' self.config_external_abc2midi='/usr/bin/abc2midi' # Use png or gif? self.config_use_gif=0 self.config_external_rasterize='/usr/bin/ppmtogif' self.config_external_gzip='/bin/gzip' self.config_score_orientation='-tb' # or -lr for horizontal # Serve and store scores gzipped to save space? self.config_zip_scores=0 # Cut off hash to this many characters for user friendliness self.hash_length = 6 # Show code in HTML page by default? self.show_code = 1 # Generate PNG graphics of each page? (slow and memory intensive for server) self.show_score = 1 # Show an embedded MIDI controller for playing the song? self.show_midi = 1 # Syntax highlighting colors for ABC code self.header_color = '#6000a0' self.info_color = '#006000' self.note_color = '#000000' self.bar_color = '#ff0000' self.continues_color = '#ff00ff' self.comment_color = '#ff5050' self.chord_color = '#808080' def format(self, formatter): # this has the function of the old processor method # just use self.raw and self.request self.process(self.request, formatter, self.raw.split("\n")) #self.process(self.request, formatter, self.raw) #self.request.write(self.raw) def quote_apply(self, f, txt): """Apply a given function on text to all quotations in a string""" # This is harder than it sounds because replacement text may have quotes qi = txt.find('"') while not qi == -1: qi2 = txt.find('"', qi + 1) if not qi2 == -1: newtext = f(txt[qi:qi2 + 1]) txt = txt[:qi] + newtext + txt[qi2 + 1:] lenincr = len(newtext) - (qi2 - qi) qi = txt.find('"', qi2 + lenincr) else: qi = -1 return txt def color_txt(self, c, txt): """Make text appear the given ascii color""" return '' + txt + '' def colorize_line(self, txt): # If it is header, color it and we're done if len(txt) >= 2 and txt[1] == ':': return self.color_txt(self.header_color, txt[:2]) + self.color_txt(self.info_color, txt[2:]) # If it is comment, color and we're done if len(txt) >= 1 and txt[0] == '%': return self.color_txt(self.comment_color, txt) # Color quotations (chords) first, otherwise # we will get more quotes from font tags later. def give_chord_color(txt): return self.color_txt(self.chord_color, txt) txt = self.quote_apply(give_chord_color, txt) txt = txt.replace('|', self.color_txt(self.bar_color, '|')) txt = txt.replace('\\', self.color_txt(self.continues_color, '\\')) return self.color_txt(self.note_color, txt) def colorize(self, lines): """Do rudimentary syntax highlighting of ABC music in HTML""" # Do it line by line clines = map(self.colorize_line, lines) return string.join(clines, '\n') def get_title(self, lines): """Return the title string, if it exists""" for l in lines: if len(l) >= 2 and l[0] == 'T' and l[1] == ':': return l[2:] return "(Untitled)" def cleanup(self, txt): """Scrub a title so it may be used in a filename""" # Old way, txt.replace(' ', '_').replace('(', '').replace(')', '') res = "" for x in txt: if x.isalnum(): res = res + x if x == ' ': res = res + '_' return res def process_arguments(self, lines): global show_code global show_score if len(lines) > 0: stripline0 = string.strip(lines[0]) if stripline0 == "#!AbcMusic": del lines[0] self.process_arguments(lines) if stripline0 == "#show-code-off": del lines[0] show_code = 0 self.process_arguments(lines) if stripline0 == "#show-code-on": del lines[0] show_code = 1 self.process_arguments(lines) if stripline0 == "#show-score-off": del lines[0] show_score = 0 self.process_arguments(lines) if stripline0 == "#show-score-on": del lines[0] show_score = 1 self.process_arguments(lines) return def process(self, request, formatter, lines): global show_code # Preprocessing stage self.process_arguments(lines) title = self.get_title(lines) texstr = string.join(lines, '\n') texstr = string.strip(texstr) hash = sha.new(texstr).hexdigest()[:self.hash_length] name = self.cleanup(title) + '_' + hash filepath = "%s/%s" % (self.config_cache_dir, name) urlpath = "%s/%s" % (self.config_cache_url, name) if self.config_use_gif: suffix = ".gif" else: suffix = ".png" abcpath = filepath + ".abc" pspath = filepath + ".ps" psgzpath = filepath + ".ps.gz" pngpath = filepath + suffix logpath = filepath + ".log" midipath = filepath + ".mid" abcurl = urlpath + ".abc" if self.config_zip_scores: psurl = urlpath + ".ps.gz" else: psurl = urlpath + ".ps" pngurl = urlpath + suffix logurl = urlpath + ".log" midiurl = urlpath + ".mid" # Delete logfile os.system("rm -f %s" % logpath) # Generate PS if not os.path.exists(pspath): data = open(abcpath, "w") data.write('%s' % texstr) data.close() options = "-e 1" cmd = "cd %(workingdir)s ; %(abc2ps)s %(options)s -O %(outfile)s %(infile)s >> %(logfile)s 2>&1" % { "workingdir" : self.config_tmp_dir, "abc2ps": self.config_external_abc2ps, "options": options, "outfile" : pspath, "infile": abcpath, "logfile": logpath } os.system(cmd) os.system("chmod 644 " + pspath) os.system("chmod 644 " + abcpath) if self.config_zip_scores: cmd = "%(gzip)s %(file)s 2> /dev/null" % { "gzip" : self.config_external_gzip, "file" : pspath } os.system(cmd) os.system("chmod 644 " + psgzpath) os.system("chmod 644 " + logpath) # Generate PNG if (not os.path.exists(pngpath)) and self.show_score: # delete any old stuff cmd = 'rm -f %s/%s*.ppm' % (self.config_tmp_dir, name) os.system(cmd) # Use ghostscript to convert ps to pnm files options = "-dNOPAUSE -q -dBATCH -sPAPERSIZE=letter -sDEVICE=ppmraw -dTextAlphaBits=4 -dGraphicsAlphaBits=4 -r120x120 -sOutputFile=%s%%003d.ppm" % name cmd = 'cd %(workingdir)s ; %(gs)s %(options)s %(infile)s > /dev/null 2>&1' % { "workingdir" : self.config_tmp_dir, "gs" : self.config_external_gs, "options" : options, "infile" : pspath } os.system(cmd) # Concatenate pnm files into one file cmd = 'cd %(workingdir)s ; %(pnmcat)s %(orientation)s %(name)s*.ppm 2> /dev/null | %(pnmcrop)s 2> /dev/null | %(rasterize)s > %(outfile)s 2> /dev/null' % { "workingdir" : self.config_tmp_dir, "pnmcat" : self.config_external_pnmcat, "orientation" : self.config_score_orientation, "name" : name, "pnmcrop" : self.config_external_pnmcrop, "rasterize" : self.config_external_rasterize, "outfile" : pngpath } os.system(cmd) os.system("chmod 644 " + pngpath) # Generate MIDI file if not os.path.exists(midipath): data = open(abcpath, "w") data.write('%s' % texstr) data.close() options = "" cmd = "cd %(workingdir)s ; %(abc2midi)s %(infile)s %(options)s -o %(outfile)s >> %(logfile)s 2>&1" % { "workingdir" : self.config_tmp_dir, "abc2midi": self.config_external_abc2midi, "options": options, "outfile" : midipath, "infile": abcpath, "logfile": logpath } os.system(cmd) os.system("chmod 644 " + midipath) os.system("chmod 644 " + abcpath) os.system("chmod 644 " + logpath) # Clean up junk (unzipped score if using zipped scores) if self.config_zip_scores: os.system("rm -f " + pspath) # Generate page # if show_code or show_score: request.write(formatter.paragraph(1)) request.write(formatter.table(1)) request.write(formatter.table_row(1)) request.write(formatter.table_cell(1)) request.write(formatter.paragraph(1)) request.write(formatter.strong(1)) request.write(formatter.emphasis(1)) request.write(formatter.text(title)) request.write(formatter.emphasis(0)) request.write(formatter.strong(0)) request.write(formatter.linebreak(preformatted=0)) request.write(formatter.url(1, abcurl)) request.write("ABC source file") request.write(formatter.url(0)) request.write(formatter.linebreak(preformatted=0)) request.write(formatter.url(1, psurl)) request.write("PostScript score") request.write(formatter.url(0)) request.write(formatter.linebreak(preformatted=0)) request.write(formatter.url(1, midiurl)) request.write("MIDI rendition") request.write(formatter.url(0)) request.write(formatter.linebreak(preformatted=0)) request.write(formatter.url(1, logurl)) request.write("Compilation log") request.write(formatter.url(0)) request.write(formatter.paragraph(0)) request.write(formatter.table_cell(0)) request.write(formatter.table_row(0)) if 0:#show_midi: request.write(formatter.table_row(1)) request.write(formatter.table_cell(1)) request.write(formatter.preformatted(1)) request.write(formatter.rawHTML("" % midiurl)) request.write(formatter.preformatted(0)) request.write(formatter.table_cell(0)) request.write(formatter.table_row(0)) if self.show_score: request.write(formatter.table_row(1)) request.write(formatter.table_cell(1)) request.write(formatter.rawHTML(""%pngurl)) request.write(formatter.table_cell(0)) request.write(formatter.table_row(0)) if self.show_code: request.write(formatter.table_row(1)) request.write(formatter.table_cell(1)) request.write(formatter.preformatted(1)) request.write(formatter.rawHTML(self.colorize(lines))) request.write(formatter.preformatted(0)) request.write(formatter.table_cell(0)) request.write(formatter.table_row(0)) request.write(formatter.table(0)) request.write(formatter.paragraph(0)) # Old way with just one link #request.write(formatter.url(psurl, text=title))