Mercurial > sqlpython
changeset 21:8b55aaa52ce9
working on load, and preserving stdin/out
author | devlinjs@FA7CZA6N1254998.wrightpatterson.afmc.ds.af.mil |
---|---|
date | Wed, 19 Dec 2007 13:40:39 -0500 |
parents | d6d64c2e3b98 |
children | 221095f3a4af |
files | cmd2.py sqlpyPlus.py |
diffstat | 2 files changed, 62 insertions(+), 25 deletions(-) [+] |
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--- a/cmd2.py Wed Dec 19 11:49:23 2007 -0500 +++ b/cmd2.py Wed Dec 19 13:40:39 2007 -0500 @@ -4,15 +4,21 @@ Multi-line commands Case-insensitive commands Special-character shortcut commands + +still to do: +environment (maxrows, etc.) +edit + """ import cmd, re, os class Cmd(cmd.Cmd): - excludeFromHistory = '''run r list l history hi ed li'''.split() caseInsensitive = True multilineCommands = [] continuationPrompt = '> ' - shortcuts = {'?': 'help', '!': 'shell'} + shortcuts = {'?': 'help', '!': 'shell', '@': 'load'} + excludeFromHistory = '''run r list l history hi ed li'''.split() + defaultExtension = 'txt' def __init__(self, *args, **kwargs): cmd.Cmd.__init__(self, *args, **kwargs) self.history = History() @@ -46,12 +52,30 @@ def finishStatement(self, firstline): statement = firstline while not self.statementHasEnded(statement): - statement = '%s\n%s' % (statement, raw_input(self.continuationPrompt)) + statement = '%s\n%s' % (statement, self.pseudo_raw_input(self.continuationPrompt)) return statement # assembling a list of lines and joining them at the end would be faster, # but statementHasEnded needs a string arg; anyway, we're getting # user input and users are slow. + def pseudo_raw_input(self, prompt): + """copied from cmd's cmdloop; like raw_input, but accounts for changed stdin, stdout""" + + if self.use_rawinput: + try: + line = raw_input(prompt) + except EOFError: + line = 'EOF' + else: + self.stdout.write(prompt) + self.stdout.flush() + line = self.stdin.readline() + if not len(line): + line = 'EOF' + else: + line = line[:-1] # chop \n + return line + statementEndPattern = re.compile(r'[\n;]\s*$') def statementHasEnded(self, lines): """This version lets statements end with ; or with a blank line. @@ -91,7 +115,7 @@ else: history = self.history for hi in history: - hi.pr() + self.stdout.write(hi.pr()) def last_matching(self, arg): try: if arg: @@ -110,12 +134,41 @@ arg is /enclosed in forward-slashes/ -> regular expression search """ try: - self.last_matching(arg).pr() + self.stdout.write(self.last_matching(arg).pr()) except: pass do_hi = do_history do_l = do_list do_li = do_list + + def breakupStatements(self, txt): + """takes text that may include multiple statements and + breaks it into a list of individual statements.""" + result = [''] + for line in txt.splitlines(): + result[-1] += line + if self.statementHasEnded(result[-1]): + result.append('') + + def do_load(self, fname): + """Runs command(s) from a file.""" + stdin = self.stdin + try: + self.stdin = open(fname, 'r') + except IOError, e: + try: + self.stdin = open('%s.%s' % (fname, self.defaultExtension), 'r') + except: + print 'Problem opening file %s: \n%s' % (fname, e) + self.stdin = stdin + return + use_rawinput = self.use_rawinput + self.use_rawinput = False + print 'stdin = ' + str(self.stdin) + self.cmdloop() + self.stdin.close() + self.stdin = stdin + self.use_rawinput = use_rawinput class HistoryItem(str): def __init__(self, instr): @@ -123,8 +176,7 @@ self.lowercase = self.lower() self.idx = None def pr(self): - print '-------------------------[%d]' % (self.idx) - print self + return '-------------------------[%d]\n%s\n' % (self.idx, str(self)) class History(list): rangeFrom = re.compile(r'^([\d])+\s*\-$')
--- a/sqlpyPlus.py Wed Dec 19 11:49:23 2007 -0500 +++ b/sqlpyPlus.py Wed Dec 19 13:40:39 2007 -0500 @@ -342,6 +342,9 @@ return result class sqlpyPlus(sqlpython.sqlpython): + defaultExtension = 'sql' + multilineCommands = '''select insert update delete tselect + create drop alter'''.split() def __init__(self): sqlpython.sqlpython.__init__(self) self.binds = CaselessDict() @@ -351,9 +354,6 @@ self.spoolFile = None self.autobind = False self.failover = False - self.multiline = '''select insert update delete tselect - create drop alter'''.split() - def default(self, arg, do_everywhere=False): sqlpython.sqlpython.default(self, arg, do_everywhere) self.sqlBuffer.append(self.query) @@ -749,21 +749,6 @@ self.onecmd_plus_hooks(runme) do_r = do_run - def load(self, fname): - """Pulls command(s) into sql buffer. Returns number of commands loaded.""" - try: - f = open(fname, 'r') - except IOError, e: - try: - f = open('%s.sql' % fname, 'r') - except: - print 'Problem opening file %s: \n%s' % (fname, e) - return 0 - txt = f.read() - f.close() - result = commandSeparator.separate(txt) - self.history.extend(result) - return len(result) def do_ed(self, arg): 'ed [N]: brings up SQL from N commands ago in text editor, and puts result in SQL buffer.' fname = 'sqlpython_temp.sql'