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sedsed
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#!/usr/bin/env python
# sedsed - the SED mastering script
# Since 27 November 2001, by Aurelio Marinho Jargas
# For ChangeLog and Documentation, see http://sedsed.sf.net
import sys, re, os, getopt, string, tempfile
myname = 'sedsed'
myversion = '1.0'
myhome = 'http://sedsed.sf.net'
#-------------------------------------------------------------------------------
# User Configuration
#-------------------------------------------------------------------------------
# Default config - Changeable, but you won't need to do it
sedbin = 'sed' # name (or full path) of the sed program
color = 1 # colored output or not? (--color, --nocolor)
dump_debug = 0 # dump debug script to screen? (--dump-debug)
indent_prefix = ' '*4 # default indent prefix for blocks (--prefix)
debug_prefix = '\t\t' # default prefix for debug commands
action = 'indent' # default action if none specified (-d,-i,-t,-H)
DEBUG = 0 # set developper's debug level [0-3]
EMUDEBUG = 0 # emulator have it's own debug [0-3]
# HTML colors for --htmlize
# You may edit here to change the default colors
html_colors = {
'addr1' : '#8080ff',
'addr1flag': '#ff6060',
'addr2' : '#8080ff',
'addr2flag': '#ff6060',
'lastaddr' : '',
'modifier' : '#ff6060',
'id' : '#ffff00',
'content' : '#ff00ff',
'delimiter': '#ff6060',
'pattern' : '#8080ff',
'replace' : '',
'flag' : '#00ff00',
'extrainfo': '',
'comment' : '#00ffff',
'escape' : '#ff6060',
'special' : '#00ff00',
'pattmeta' : '#ff00ff',
'plaintext': '',
'branch' : '',
'BGCOLOR' : '#000000',
'TEXT' : '#ffffff',
'LINK' : '#ff00ff',
'ALINK' : '#ff00ff',
'VLINK' : '#ff00ff'
}
#-------------------------------------------------------------------------------
# General Functions
#-------------------------------------------------------------------------------
def printUsage(exitcode=1):
print """
Usage: sedsed OPTION [-e sedscript] [-f sedscriptfile] [inputfile]
OPTIONS:
-f, --file add file contents to the commands to be parsed
-e, --expression add the script to the commands to be parsed
-n, --quiet suppress automatic printing of pattern space
--silent alias to --quiet
-d, --debug debug the sed script
--hide hide some debug info (options: PATT,HOLD,COMM)
--color shows debug output in colors (default: ON)
--nocolor no colors on debug output
--dump-debug dumps to screen the debugged sed script
--emu emulates GNU sed (INCOMPLETE)
--emudebug emulates GNU sed debugging the sed script (INCOMPLETE)
-i, --indent script beautifier, prints indented and
one-command-per-line output do STDOUT
--prefix indent prefix string (default: 4 spaces)
-t, --tokenize script tokenizer, prints extensive
command by command information
-H, --htmlize converts sed script to a colorful HTML page
-V, --version prints the program version and exit
-h, --help prints this help message and exit
NOTE: The --emu and --emudebug options are still INCOMPLETE and must
be used with care. Mainly regexes and address $ (last line)
are not handled right by the emulator.
"""
print "Homepage: %s\n"%myhome
sys.exit(exitcode)
def Error(msg):
"All error messages are handled by me"
print 'ERROR:',msg ; sys.exit(1)
def echo(msg): print "\033[33;1m%s\033[m"%msg
def Debug(msg, level=1):
if DEBUG and DEBUG >= level: print '+++ DEBUG%d: %s'%(level,msg)
def read_file(file):
"Reads a file into a list, removing line breaks"
if file == '-':
try: data = sys.stdin.readlines()
except: Error('I was expecting data on STDIN!')
else:
try: f = open(file); data = f.readlines() ; f.close()
except: Error("Cannot read file: %s"%file)
return map(lambda x:re.sub('[\n\r]+$','',x), data)
def write_file(file, lines=[]):
"Writes a list contents into file, adding correct line breaks"
try: f = open(file, 'wb')
except: Error("Cannot open file for writing: %s"%file)
#TODO maybe use os.linesep? - all this is really necessary?
# ensuring line break
lines = map(lambda x:re.sub('\n$','',x)+'\n', lines)
f.writelines(lines); f.close()
def runCommand(cmd): # Returns a (#exit_code, program_output[]) tuple
#TODO dont use popen()
list = [] ; fd = os.popen(cmd)
for line in fd.readlines():
list.append(string.rstrip(line)) # stripping \s*\n
ret = fd.close()
if ret: ret = ret/256 # 16bit number
return ret, list
#-------------------------------------------------------------------------------
# Command line & Config
#-------------------------------------------------------------------------------
# Here's all the valid command line options
short_options = 'he:f:ditVHn'
long_options = [
'debug', 'tokenize', 'htmlize', 'indent', # actions
'version', 'help', 'file=', 'expression=', 'silent', 'quiet', # sed-like
'nocolor', 'color', 'hide=', 'prefix=', 'emu', 'emudebug', # misc
'dump-debug', # other
'_debuglevel=','_emudebuglevel=','_stdout-only', 'dumpcute'] # admin
# Check it!
try: opt, args = getopt.getopt(sys.argv[1:], short_options, long_options)
except getopt.error, errmsg: Error("%s (try --help)"%errmsg)
# Turn color OFF on Windows because ANSI.SYS is not installed by default.
# Windows users who have ANSY.SYS configured, can use the --color option
# or comment the following line.
# ANSY.SYS ressources:
# http://www.evergreen.edu/biophysics/technotes/program/ansi_esc.htm#notes
# http://www3.sympatico.ca/rhwatson/dos7/v-ansi-escseq.html
if os.name == 'nt': color = 0
# Command Line is OK, now let's parse its values
action_modifiers = [] # --hide contents and others
sedscript = [] # join all scripts found here
script_file = '' # old sedscript filename for --htmlize
quiet_flag = 0 # tell if the #n is needed or not
for o in opt:
if o[0] in ('-d', '--debug') : action = 'debug'
elif o[0] in ('-i', '--indent') : action = 'indent'; color = 0
elif o[0] in ('-t', '--tokenize') : action = 'token' ; color = 0
elif o[0] in ('-H', '--htmlize') : action = 'html' ; color = 0
elif o[0] in ('-n', '--quiet') : quiet_flag = 1
elif o[0] in ('-e', '--expression'): sedscript.append(o[1])
elif o[0] in ('-f', '--file') :
sedscript.extend(read_file(o[1]))
script_file = o[1]
elif o[0] in ('-h', '--help') : printUsage(0)
elif o[0] in ('-V', '--version') :
print '%s v%s'%(myname,myversion)
sys.exit(0)
elif o[0] == '--emu' : action = 'emu'
elif o[0] == '--emudebug' : action = 'emudebug'
elif o[0] == '--dump-debug': action = 'debug' ; dump_debug=1 ; color=0
elif o[0] == '--nocolor' : color = 0
elif o[0] == '--color' : color = 1
elif o[0] == '--hide': # get hide options
for hide in string.split(o[1], ','): # save as no<OPT>
hide_me = string.lower(string.strip(hide))
action_modifiers.append('no'+hide_me)
elif o[0] == '--prefix':
if re.sub('\s', '', o[1]): # prefix is valid?
Error("--prefix: must be spaces and/or TABs")
indent_prefix = o[1]
# not documented admin options
elif o[0] == '--_debuglevel' : DEBUG = int(o[1])
elif o[0] == '--_emudebuglevel': EMUDEBUG = int(o[1])
elif o[0] == '--_stdout-only':
action = 'debug'
action_modifiers.append(o[0][2:])
elif o[0] == '--dumpcute':
action = 'dumpcute'; DEBUG = 0; color = 1
# Now all Command Line options were sucessfuly parsed
#-------------------------------------------------------------------------------
# Sanity Checkings
#-------------------------------------------------------------------------------
# There's a SED script?
if not sedscript:
if args: # the script is the only argument (echo | sed 's///')
sedscript.append(args.pop(0))
else: # :(
Error("there's no SED script to parse! (try --help)")
# Get all text files, if none, use STDIN (-)
textfiles = args or ['-']
# On --debug, check the given script syntax, runnig SED with it.
# We will not debug a broken script.
#XXX there is a problem with popen() and win9x machines
# so i'm skipping this check for those machines
#TODO redo this check using !runCommand
if action == 'debug' and os.name != 'nt':
tmpfile = tempfile.mktemp()
write_file(tmpfile, sedscript)
ret, msg = runCommand("%s -f '%s' /dev/null"%(sedbin,tmpfile))
if ret:
msg = 'syntax error on your SED script, please fix it before.'
Error('#%d: %s' % (ret,msg))
os.remove(tmpfile)
#-------------------------------------------------------------------------------
# Internal Config Adjustments and Magic
#-------------------------------------------------------------------------------
# Add the leading #n to the sed script, when using -n
if quiet_flag: sedscript.insert(0, '#n')
# Add the terminal escapes for color (or not)
if color:
color_YLW = '\033[33;1m' # yellow text
color_RED = '\033[31;1m' # red text
color_REV = '\033[7m' # reverse video
color_NO = '\033[m' # back to default
else:
color_YLW = color_RED = color_REV = color_NO = ''
### The SED debugger magic lines
#
# Here is where the 'magic' lives. The heart of this program are the
# following lines, which are the special SED commands responsable for
# the DEBUG behaviour. For *each* command of the original script,
# several commands are added before, to show buffers and command
# contents. Some tricks are needed to preserve script's original
# behaviour, they are explained ahead.
#
# 1. Show PATTERN SPACE contents:
# The 'PATT:' prefix is added, then the 'l' command shows the
# buffer contents, then the prefix is removed.
#
# 2. Show HOLD SPACE contents:
# Similar to PATTERN SPACE, but use the 'x' command to access and
# restore the HOLD buffer contents. The prefix used is 'HOLD:'.
#
# 3. Show current SED COMMAND:
# Uses a single 'i' command to show the full 'COMM:' line, as it
# does not depend on execution data. The color codes are added or
# not, depending on user options.
#
# 4. 'Last Address' trick:
# On SED, the empty address // refers to the last address matched.
# As this behaviour can be affected when several DEBUG lines are
# inserted before the command, sedsed uses a trick to force it.
# The last address used on the original script is repeated with a
# null command (/last-address/ y/!/!/). This way sedsed repeat the
# addressing, ensuring the next command will have it as the right
# 'last' address.
#
# 5. 't Status' trick:
# The 't' command behaviour, from SED manual page:
#
# If a s/// has done a successful substitution since the last
# input line was read and since the last t command, then branch
# to label
#
# As all the DEBUG commands use lots of 's///' commands, the 't'
# status is always true. The trick here is to add fake labels
# between *any* command and fake 't' commands to jump to them:
#
# <last command, possibly s///>
# t zzset001
# ... debug commands ...
# t zzclr001
# : zzset001
# ... debug commands ...
# : zzclr001
# <next command, possibly t>
#
# The DEBUG commands are repeated and placed into two distinct
# blocks: 'zzset' and 'zzclr', which represents the 't' status
# of the last command. The execution order follows:
#
# zzset: 1st jump (t), then debug (s///), t status is ON
# zzclr: 1st debug (s///), then jump (t), t status is OFF
#
# The 001 count is incremented on each command to have unique
# labels.
#
#
# --- THANK YOU VERY MUCH ---
#
# - Paolo Bonzini (GNU sed 4.x maintainer) for the idea of the
# 't status' trick.
#
# - Thobias Salazar Trevisan for the idea of using the 'i'
# command for the COMM: lines.
#
# show pattern space, show hold space, show sed command
# null sed command to restore last address, 't' status trick
showpatt = [ 's/^/PATT:/', 'l', 's/^PATT://' ]
showhold = ['x', 's/^/HOLD:/', 'l', 's/^HOLD://', 'x']
showcomm = ['i\\','COMM:%s\a%s'%(color_YLW, color_NO)]
nullcomm = ['y/!/!/']
save_t = ['t zzset\a\n#DEBUG#', 't zzclr\a',
':zzset\a\n#DEBUG#' , ':zzclr\a' ]
def format_debugcmds(cmds):
"One per line, with prefix (spaces)"
return debug_prefix + string.join(cmds, '\n'+debug_prefix) + '\n'
showpatt = format_debugcmds(showpatt)
showhold = format_debugcmds(showhold)
save_t = format_debugcmds(save_t )
showcomm = debug_prefix+string.join(showcomm, '\n')+'\n'
nullcomm = nullcomm[0]
# If user specified --hide, unset DEBUG commands for them
if action_modifiers.count('nopatt'): showpatt = '' # don't show!
if action_modifiers.count('nohold'): showhold = '' # don't show!
if action_modifiers.count('nocomm'): showcomm = '' # don't show!
# Compose HTML page header and footer info for --htmlize.
# The SCRIPTNAME is added then removed from html_colors for
# code convenience only.
#
html_colors['SCRIPTNAME'] = os.path.basename(script_file)
html_data = {
'header': """\
<html>
<head><meta name="Generator" content="sedsed --htmlize">
<title>Colorized %(SCRIPTNAME)s</title></head>
<body bgcolor="%(BGCOLOR)s" text="%(TEXT)s"
link="%(LINK)s" alink="%(ALINK)s" vlink="%(VLINK)s">
<pre>
"""%html_colors,
'footer': """
<font color="%s"><b>### colorized by <a \
href="http://sedsed.sf.net">sedsed</a>, a SED script \
debugger/indenter/tokenizer/HTMLizer</b></font>\n
</pre></body></html>\
"""%html_colors['comment']
}
del html_colors['SCRIPTNAME']
#-------------------------------------------------------------------------------
# SED Machine Data
#-------------------------------------------------------------------------------
# All SED commands grouped by kind
sedcmds = {
'file' : 'rw' ,
'addr' : '/$0123456789\\',
'multi': 'sy' ,
'solo' : 'nNdDgGhHxpPlq=',
'text' : 'aci' ,
'jump' : ':bt' ,
'block': '{}' ,
'flag' : 'gpIi0123456789w'
}
# Regex patterns to identify special entities
patt = {
'jump_label': r'[^\s;}#]*' , # _any_ char except those, or None
'filename' : r'[^\s]+' , # _any_ not blank char (strange..)
'flag' : r'[%s]+'%sedcmds['flag'] , # list of all flags
'topopts' : r'#!\s*/[^\s]+\s+-([nf]+)' # options on #!/bin/sed header
}
# All fields used by the internal SED command dictionary
cmdfields = [
'linenr',
'addr1', 'addr1flag', 'addr2', 'addr2flag', 'lastaddr', 'modifier',
'id', 'content', 'delimiter', 'pattern', 'replace', 'flag',
'extrainfo', 'comment'
]
#XXX Don't change the order! There is a piggy cmdfields[6:] ahead
#-------------------------------------------------------------------------------
# Auxiliar Functions - Tools
#-------------------------------------------------------------------------------
def escapeTextCommandsSpecials(str):
str = string.replace(str, '\\', '\\\\') # escape escape
return str
def isOpenBracket(str):
# bracket open: [ \\[ \\\\[ ...
# not bracket : \[ \\\[ \\\\\[ ...
isis = 0
delim = '['
str = re.sub('\[:[a-z]+:]', '', str) # del [:charclasses:]
if string.find(str, delim) == -1: return 0 # hey, no brackets!
# Only the last two count
patterns = string.split(str, delim)[-2:]
Debug('bracketpatts: %s'%patterns,3)
possibleescape, bracketpatt = patterns
# Maybe the bracket is escaped, and is not a metachar?
m = re.search(r'\\+$', possibleescape) # escaped bracket
if m and len(m.group(0))%2: # odd number of escapes
Debug('bracket INVALID! - escaped',2)
isis = 0
elif string.find(bracketpatt, ']') == -1: # not closed by ]
Debug('bracket OPEN! - found! found!',2)
isis = 1 # it is opened! &:)
return isis
def paintHtml(id, txt=''):
# Escape HTML special chars
if txt:
txt = string.replace(txt, '&', '&')
txt = string.replace(txt, '>', '>')
txt = string.replace(txt, '<', '<')
# Some color adjustments and emphasis
if id == 'id' and txt in sedcmds['block']:
id = 'delimiter'
elif id == 'id' and txt == ':':
id = 'content'
elif id == 'replace': # highlight \n, & and \$
newtxt = paintHtml('special', '\\'+linesep)
txt = string.replace(txt, '\\'+linesep, newtxt)
txt = re.sub(
'(\\\\[1-9]|&)', paintHtml('special', '\\1'), txt)
elif id == 'pattern': # highlight ( and |
txt = re.sub(
'(\\\\)([(|])', '\\1'+paintHtml('pattmeta', '\\2'), txt)
elif id == 'plaintext': # highlight \$
newtxt = paintHtml('special', '\\'+linesep)
txt = string.replace(txt, '\\'+linesep, newtxt)
elif id == 'branch': # nice link to the label!
txt = '<a href="#%s">%s</a>'%(txt,txt)
elif id == 'target': # link target
txt = '<a name="%s">%s</a>'%(txt,txt)
id = 'content'
# Paint it!
if html_colors.get(id) and txt:
font_color = html_colors[id]
txt = '<font color="%s"><b>%s</b></font>'%(font_color, txt)
return txt
#-------------------------------------------------------------------------------
# SedCommand class - Know All About Commands
#-------------------------------------------------------------------------------
# TIP: SedCommand already receives lstrip()ed data and data != None
class SedCommand:
def __init__(self, abcde):
self.id = abcde[0] # s
self.content = '' # txt, filename
self.modifier = '' # !
self.full = '' # !s/abc/def/g
# for s/// & y///
self.pattern = '' # abc
self.replace = '' # def
self.delimiter = '' # /
self.flag = '' # g
self.isok = 0
self.comment = ''
self.rest = self.junk = abcde
self.extrainfo = ''
if self.id == '!':
self.modifier = self.id # set modifier
self.junk = string.lstrip(self.junk[1:]) # del !@junk
self.id = self.junk[0] # set id again
self.junk = self.junk[1:] # del id@junk
#self.setId()
self.doItAll()
def doItAll(self):
# here, junk arrives without the id, but not lstripped (s///)
id = self.id
#TODO put pending comment on the previous command (h ;#comm)
if id == '#':
Debug('type: comment',3)
self.comment = self.id+self.junk
self.junk = ''
self.isok = 1
elif id in sedcmds['solo']:
Debug('type: solo',3)
self.isok = 1
elif id in sedcmds['block']:
Debug('type: block',3)
self.isok = 1
elif id in sedcmds['text']:
Debug('type: text',3)
if self.junk[-1] != '\\': # if not \ at end, finished
# ensure \LineSep at begining
self.content = re.sub(
r'^\\%s'%linesep, '', self.junk)
self.content = '\\%s%s'%(linesep,self.content)
self.isok = 1
elif id in sedcmds['jump']:
Debug('type: jump',3)
self.junk = string.lstrip(self.junk)
m = re.match(patt['jump_label'], self.junk)
if m:
self.content = m.group()
self.junk = self.junk[m.end():]
self.isok = 1
elif id in sedcmds['file']:
#TODO deal with valid cmds like 'r bla;bla' and 'r bla ;#comm'
#TODO spaces and ; are valid as filename chars
Debug('type: file',3)
self.junk = string.lstrip(self.junk)
m = re.match(patt['filename'], self.junk)
if m:
self.content = m.group()
self.junk = self.junk[m.end():]
self.isok = 1
elif id in sedcmds['multi']: # s/// & y///
Debug('type: multi',3)
self.delimiter = self.junk[0]
ps = SedAddress(self.junk)
hs = ''
if ps.isok:
self.pattern = ps.pattern
self.junk = ps.rest
# 'replace' opt to avoid openbracket check,
# because 's/bla/[/' is ok
hs = SedAddress(self.delimiter+self.junk,
'replace')
if hs.isok:
self.replace = hs.pattern
self.junk = string.lstrip(hs.rest)
# great, s/patt/rplc/ sucessfully taken
if hs and hs.isok and self.junk: # there are flags?
Debug('possible s/// flag: %s'%self.junk,3)
m = re.match('(%s\s*)+'%patt['flag'],self.junk)
if m:
self.flag = m.group()
self.junk = string.lstrip(
self.junk[m.end():]) # del flag
self.flag = re.sub(
'\s','',self.flag) # del blanks@flag
Debug('FOUND s/// flag: %s'%(
string.strip(self.flag)))
### now we've got flags also
if 'w' in self.flag: # write file flag
m = re.match(patt['filename'],self.junk)
if m:
self.content = m.group()
Debug('FOUND s///w filename: %s'%self.content)
self.junk = string.lstrip(
self.junk[m.end():])
### and now, s///w filename
### is saved also
if hs and hs.isok: self.isok = 1
else:
Error("invalid SED command '%s' at line %d"%(id,linenr))
if self.isok:
self.full = composeSedCommand(vars(self))
self.full = string.replace(self.full, '\n', linesep)
self.rest = string.lstrip(self.junk)
Debug('FOUND command: %s'%self.full)
Debug('rest left: %s'%self.rest,2)
possiblecomment = self.rest
if possiblecomment and possiblecomment[0] == '#':
self.comment = possiblecomment
Debug('FOUND comment: %s'%self.comment)
Debug('SedCommand: %s'%vars(self),3)
#-------------------------------------------------------------------------------
# SedAddress class - Know All About Addresses
#-------------------------------------------------------------------------------
#TIP an address is NOT multiline
class SedAddress:
def __init__(self, abcde, context='addr'):
self.delimiter = ''
self.pattern = ''
self.flag = ''
self.full = ''
self.html = ''
self.isline = 0
self.isok = 0
self.escape = ''
self.rest = self.junk = abcde
self.context = context
self.setType() # numeric or pattern?
self.doItAll()
Debug('SedAddress: %s'%vars(self),3)
def doItAll(self):
if self.isline: self.setLineAddr()
else : self.setPattAddr()
if self.isok:
self.full = '%s%s%s%s'%(
self.escape,
self.delimiter,
self.pattern,
self.delimiter)
if action == 'html':
self.html = '%s%s%s%s'%(
paintHtml('escape' , self.escape ),
paintHtml('delimiter', self.delimiter),
paintHtml('pattern' , self.pattern ),
paintHtml('delimiter', self.delimiter))
Debug('FOUND addr: %s'%self.full)
cutlen = len(self.full)+len(self.flag)
self.rest = self.rest[cutlen:] # del junk's addr
self.flag = string.strip(self.flag) # del flag's blank
Debug('rest left: %s'%self.rest,2)
else:
Debug('OH NO! partial addr: %s'%self.rest)
def setType(self):
id = self.junk[0]
if re.match('[0-9$]', id): # numeric addr, easy!
self.isline = 1
else: # oh no, pattern
if id == '\\': # strange delimiter (!/)
self.escape = '\\'
self.junk = self.junk[1:] # del escape
self.delimiter = self.junk[0] # set delimiter
self.junk = self.junk[1:] # del delimiter@junk
def setLineAddr(self):
m = re.match(r'[0-9]+|\$', self.junk)
self.pattern = m.group(0)
self.isok = 1
def setPattAddr(self):
###
# similar to command finder:
# - split at pattern delimiter
# - if address not terminated, join with next split chunk (loop)
# - address found, return it
#
# We can deal with really catchy valid addresses like:
# /\/[/]\\/ and \;\;[;;]\\;
incompleteaddr = ''
Debug('addr delimiter: '+self.delimiter,2)
patterns = string.split(self.junk, self.delimiter)
Debug('addr patterns: %s'%patterns,2)
while patterns:
possiblepatt = patterns.pop(0)
# if address not terminated, join next
if incompleteaddr:
possiblepatt = string.join(
[incompleteaddr, possiblepatt],
self.delimiter)
incompleteaddr = ''
Debug('possiblepatt: '+possiblepatt,2)
# maybe splitted at a (valid) escaped delimiter?
if re.search(r'\\+$', possiblepatt):
m = re.search(r'\\+$', possiblepatt)
if len(m.group(0))%2:
Debug('address INCOMPLETE! - ends with \\ alone')
incompleteaddr = possiblepatt
continue
if self.context != 'replace':
# maybe splitted at a delimiter inside
# char class []?
# BUG: []/[] is not catched - WONTFIX
if isOpenBracket(possiblepatt):
Debug('address INCOMPLETE! - open bracket')
incompleteaddr = possiblepatt
continue
break # it's an address!
if patterns: # must have something left
if patterns[0]: # the rest is a flag?
Debug('possible addr flag: %s'%patterns[0],3)
m = re.match('\s*I\s*', patterns[0])
if m: # yes, a flag!
self.flag = m.group() # set addr flag
Debug('FOUND addr flag: %s'%(
string.strip(self.flag)))
self.pattern = possiblepatt
self.isok = 1
#-------------------------------------------------------------------------------
# Hardcore Address/Command Composer Functions
#-------------------------------------------------------------------------------
def composeSedAddress(dict):
addr1 = ''
if action == 'html':
if dict['addr1']: addr1 = dict['addr1html']
if dict['addr2']: addr2 = dict['addr2html']
else:
addr1 = '%s%s'%(dict['addr1'],dict['addr1flag'])
if dict['addr2']:
addr2 = '%s%s'%(dict['addr2'],dict['addr2flag'])
if dict['addr2']: addr = '%s,%s'%(addr1,addr2)
else: addr = addr1
if addr: addr = '%s '%(addr) # visual addr/cmd separation
return addr
def composeSedCommand(dict):
if dict['delimiter']: # s///
if action != 'html':
cmd = '%s%s%s%s%s%s%s%s'%(
dict['modifier'] ,dict['id'],
dict['delimiter'],dict['pattern'],
dict['delimiter'],dict['replace'],
dict['delimiter'],dict['flag'])
if dict['content']: # s///w filename
cmd = cmd+' '+dict['content']
else:
cmd = """%s%s%s%s%s%s%s%s"""%(
paintHtml('modifier' , dict['modifier'] ),
paintHtml('id' , dict['id'] ),
paintHtml('delimiter', dict['delimiter']),
paintHtml('pattern' , dict['pattern'] ),
paintHtml('delimiter', dict['delimiter']),
paintHtml('replace' , dict['replace'] ),
paintHtml('delimiter', dict['delimiter']),
paintHtml('flag' , dict['flag'] ))
if dict['content']: # s///w filename
painted = paintHtml('content', dict['content'])
cmd = '%s %s'%(cmd, painted)
else:
idsep=''
# spacer on r,w,b,t commands only
spaceme = sedcmds['file']+sedcmds['jump']
spaceme = string.replace(spaceme,':','') # : label (no space!)
if dict['id'] in spaceme: idsep=' '
cmd = '%s%s%s%s'%(
dict['modifier'],
dict['id'],
idsep,
dict['content'])
if action == 'html':
if dict['id'] in sedcmds['text']:
content_type = 'plaintext'
elif dict['id'] in 'bt':
content_type = 'branch'
elif dict['id'] == ':':
content_type = 'target'
else:
content_type = 'content'
cmd = '%s%s%s%s'%(
paintHtml('modifier' , dict['modifier']),
paintHtml('id' , dict['id'] ),
idsep,
paintHtml(content_type, dict['content'] ))
cmd = string.replace(cmd, linesep, '\n')
return cmd
#-------------------------------------------------------------------------------
# The dump* Functions - They 4mat 4you!
#-------------------------------------------------------------------------------
def dumpKeyValuePair(datalist):
"Shows field:value command data line by line (lots of lines!)"
for data in datalist[1:]: # skip headers at 0
if not data['id']: continue # blank line
for key in datalist[0]['fields']:
if key == 'replace':
data[key] = string.replace(
data[key],
linesep,
newlineshow)
print "%10s:%s"%(key,data[key])
print
# Format: line:ad1:ad1f:ad2:ad2f:mod:cmd:content:delim:patt:rplc:flag:comment
def dumpOneliner(datalist, fancy=0):
"Shows a command per line, elements separated by : (looooong lines)"
r = n = ''
if fancy: r = '\033[7m'; n = '\033[m'
for data in datalist[1:]: # skip headers at 0
outline = data['linenr']
if data['id']:
for key in datalist[0]['fields'][1:]: # skip linenr
outline = '%s:%s%s%s'%(outline,r,data[key],n)
print outline
def dumpCute(datalist):
"Shows a strange representation of SED commands. Use --dumpcute."
r = color_REV; n = color_NO
for data in datalist[1:]: # skip headers at 0
if not data['id']:
print '%40s'%'[blank]'
elif data['id'] == '#' :
print data['comment']
else:
idsep=''
if data['id'] in 'bt': idsep=' '
cmd = '%s%s%s%s'%(
data['modifier'],
data['id'],
idsep,
data['content'])
if data['delimiter']:
cmd = '%s%s%s%s%s%s%s'%(cmd,
data['delimiter'],data['pattern'],
data['delimiter'],data['replace'],
data['delimiter'],data['flag'])
cmd = string.replace(cmd, linesep, n+newlineshow+r)
print '%s'%'-'*40
print 'adr: %s%s%s%s ::: %s%s%s%s'%(
r,data['addr1'],data['addr1flag'],n,
r,data['addr2'],data['addr2flag'],n)
print 'cmd: %s%s%s [%s]'%(r,cmd,n,data['comment'])
# dumpScript: This is a handy function, used by --indent AND --htmlize
# It formats the SED script in a humam-friendly way, with one command
# per line and adding spaces on the right places. If --htmlize, it
# also adds the HTML code to the script.
#
def dumpScript(datalist, indent_prefix):
"Shows the indented script in plain text or HTML!"
indfmt = { 'string' : indent_prefix, 'initlevel' : 0,
'addrsep': ',' , 'joinaddrcmd': 0 }
outlist = []
adsep = indfmt['addrsep']
indent = indfmt['initlevel']
if action == 'html': outlist.append(html_data['header'])
for data in datalist[1:]: # skip headers at 0
if not data['id']:
outlist.append('\n')
continue # blank line
if data['id'] == '#' :
indentstr = indfmt['string']*indent
if action != 'html':
outlist.append('%s%s\n'%(
indentstr,
data['comment']))
else:
outlist.append('%s%s\n'%(
indentstr,
paintHtml('comment',
data['comment'])))
else:
if data['id'] == '}': indent = indent - 1
# only indent++ after open {
indentstr = indfmt['string']*indent
if data['id'] == '{': indent = indent + 1
cmd = composeSedCommand(data)
addr = composeSedAddress(data)
# saving full line
comm = ''
if data['comment']: comm = ';'+data['comment']
cmd = '%s%s%s'%(indentstr,addr,cmd)
outlist.append('%-39s%s\n'%(cmd,comm))
if action == 'html':
outlist.append(html_data['footer'])
for line in outlist: print line, # print the result
#-------------------------------------------------------------------------------
# doDebug - Here is where the fun begins
#-------------------------------------------------------------------------------
#
### doDebug
#
# This function performs the --debug action.
#
# After the SED script was parsed by the parsed (below), this function
# is called with the script data found. It loops, shouts and screems,
# inserting the nice DEBUG lines between the SED script commands.
#
# After all lines are composed, it call the system's SED to run the
# script, and SED will do it's job, but this time showing you all the
# secrets that the PATTERN SPACE and HOLD SPACE buffers holds.
#
def doDebug(datalist):
outlist = []
cmdlineopts = 'f'
t_count = 0
hideregisters = 0
if datalist[0].has_key('topopts'):
cmdlineopts = datalist[0]['topopts']
# If we have one or more t commands on the script, we need to save
# the t command status between debug commands. As they perform
# s/// commands, the t status of the "last substitution" is lost.
# So, we save the status doing a nice loop trick before *every*
# command (necessary overhead). This loops uses the :zzsetNNN and
# zzclrNNN labels, where NNN is the label count.
# TIP: t status resets: line read, t call
if datalist[0]['has_t']: t_count = 1
for i in range(len(datalist)):
if i == 0: continue # skip headers at 0
data = datalist[i]
if not data['id']: continue # ignore blank line
if data['id'] == '#': outlist.append('%s\n'%(data['comment']))
else:
cmd = composeSedCommand(data)
addr = composeSedAddress(data)
cmdshow = string.replace(cmd, '\n',
newlineshow+color_YLW)
cmdshow = escapeTextCommandsSpecials(addr+cmdshow)
showsedcmd = string.replace(showcomm, '\a', cmdshow)
registers = showpatt + showhold
if hideregisters: registers = ''
showall = '%s%s'%(registers,showsedcmd)
# Add the 't status' trick to commands.
# Exception: read-next-line commands (n,d,q)
# Exception: no PATT/HOLD registers to show (no s///)
if t_count and showall:
if data['id'] not in 'ndq' and registers:
tmp = string.replace(save_t, '\a',
'%03d'%t_count)
showall = string.replace(tmp, '#DEBUG#',
showall)
t_count = t_count + 1
# null cmd to restore last addr: /addr/y/!/!/
if data['lastaddr']:
showall = showall+debug_prefix+\
data['lastaddr']+nullcomm+'\n'
# after jump or block commands don't show
# registers, because they're not affected.
# exception: after b or t without target
# (read next line)
hideregisters = 0
if data['id'] in sedcmds['jump'] and data['content']:
hideregisters = 1
elif data['id'] in sedcmds['block']:
hideregisters = 1
outlist.append("%s#%s\n%s\n"%(showall,'-'*50,addr+cmd))
outlist.append(showpatt + showhold) # last line status
# executing sed script