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vimlparser.py
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#!/usr/bin/env python3
# usage: python3 vimlparser.py [--neovim] foo.vim
import sys
import re
import inspect
def main():
use_neovim = sys.argv[1] == '--neovim'
r = StringReader(viml_readfile(sys.argv[-1]))
p = VimLParser(use_neovim)
c = Compiler()
try:
for line in c.compile(p.parse(r)):
print(line)
except VimLParserException as e:
print(e)
sys.exit(1)
class VimLParserException(Exception):
pass
class AttributeDict(dict):
__getattr__ = dict.__getitem__
__setattr__ = dict.__setitem__
__delattr__ = dict.__delitem__
pat_vim2py = {
"[0-9a-zA-Z]" : "[0-9a-zA-Z]",
"[@*!=><&~#]" : "[@*!=><&~#]",
"\\<ARGOPT\\>" : "\\bARGOPT\\b",
"\\<BANG\\>" : "\\bBANG\\b",
"\\<EDITCMD\\>" : "\\bEDITCMD\\b",
"\\<NOTRLCOM\\>" : "\\bNOTRLCOM\\b",
"\\<TRLBAR\\>" : "\\bTRLBAR\\b",
"\\<USECTRLV\\>" : "\\bUSECTRLV\\b",
"\\<USERCMD\\>" : "\\bUSERCMD\\b",
"\\<\\(XFILE\\|FILES\\|FILE1\\)\\>" : "\\b(XFILE|FILES|FILE1)\\b",
"\\S" : "\\S",
"\\a" : "[A-Za-z]",
"\\d" : "\\d",
"\\h" : "[A-Za-z_]",
"\\s" : "\\s",
"\\v^d%[elete][lp]$" : "^d(elete|elet|ele|el|e)[lp]$",
"\\v^s%(c[^sr][^i][^p]|g|i[^mlg]|I|r[^e])" : "^s(c[^sr][^i][^p]|g|i[^mlg]|I|r[^e])",
"\\w" : "[0-9A-Za-z_]",
"\\w\\|[:#]" : "[0-9A-Za-z_]|[:#]",
"\\x" : "[0-9A-Fa-f]",
"^++" : "^\+\+",
"^++bad=\\(keep\\|drop\\|.\\)\\>" : "^\\+\\+bad=(keep|drop|.)\\b",
"^++bad=drop" : "^\\+\\+bad=drop",
"^++bad=keep" : "^\\+\\+bad=keep",
"^++bin\\>" : "^\\+\\+bin\\b",
"^++edit\\>" : "^\\+\\+edit\\b",
"^++enc=\\S" : "^\\+\\+enc=\\S",
"^++encoding=\\S" : "^\\+\\+encoding=\\S",
"^++ff=\\(dos\\|unix\\|mac\\)\\>" : "^\\+\\+ff=(dos|unix|mac)\\b",
"^++fileformat=\\(dos\\|unix\\|mac\\)\\>" : "^\\+\\+fileformat=(dos|unix|mac)\\b",
"^++nobin\\>" : "^\\+\\+nobin\\b",
"^[A-Z]" : "^[A-Z]",
"^\\$\\w\\+" : "^\\$[0-9A-Za-z_]+",
"^\\(!\\|global\\|vglobal\\)$" : "^(!|global|vglobal)$",
"^\\(WHILE\\|FOR\\)$" : "^(WHILE|FOR)$",
"^\\(vimgrep\\|vimgrepadd\\|lvimgrep\\|lvimgrepadd\\)$" : "^(vimgrep|vimgrepadd|lvimgrep|lvimgrepadd)$",
"^\\d" : "^\\d",
"^\\h" : "^[A-Za-z_]",
"^\\s" : "^\\s",
"^\\s*\\\\" : "^\\s*\\\\",
"^[ \\t]$" : "^[ \\t]$",
"^[A-Za-z]$" : "^[A-Za-z]$",
"^[0-9A-Za-z]$" : "^[0-9A-Za-z]$",
"^[0-9]$" : "^[0-9]$",
"^[0-9A-Fa-f]$" : "^[0-9A-Fa-f]$",
"^[0-9A-Za-z_]$" : "^[0-9A-Za-z_]$",
"^[A-Za-z_]$" : "^[A-Za-z_]$",
"^[0-9A-Za-z_:#]$" : "^[0-9A-Za-z_:#]$",
"^[A-Za-z_][0-9A-Za-z_]*$" : "^[A-Za-z_][0-9A-Za-z_]*$",
"^[A-Z]$" : "^[A-Z]$",
"^[a-z]$" : "^[a-z]$",
"^[vgslabwt]:$\\|^\\([vgslabwt]:\\)\\?[A-Za-z_][0-9A-Za-z_#]*$" : "^[vgslabwt]:$|^([vgslabwt]:)?[A-Za-z_][0-9A-Za-z_#]*$",
"^[0-7]$" : "^[0-7]$",
}
def viml_add(lst, item):
lst.append(item)
def viml_call(func, *args):
func(*args)
def viml_char2nr(c):
return ord(c)
def viml_empty(obj):
return len(obj) == 0
def viml_equalci(a, b):
return a.lower() == b.lower()
def viml_eqreg(s, reg):
return re.search(pat_vim2py[reg], s, re.IGNORECASE)
def viml_eqregh(s, reg):
return re.search(pat_vim2py[reg], s)
def viml_eqregq(s, reg):
return re.search(pat_vim2py[reg], s, re.IGNORECASE)
def viml_escape(s, chars):
r = ''
for c in s:
if c in chars:
r += "\\" + c
else:
r += c
return r
def viml_extend(obj, item):
obj.extend(item)
def viml_insert(lst, item, idx = 0):
lst.insert(idx, item)
def viml_join(lst, sep):
return sep.join(lst)
def viml_keys(obj):
return obj.keys()
def viml_len(obj):
if type(obj) is str:
return len(obj.encode('utf-8'))
return len(obj)
def viml_printf(*args):
if len(args) == 1:
return args[0]
else:
return args[0] % args[1:]
def viml_range(start, end=None):
if end is None:
return range(start)
else:
return range(start, end + 1)
def viml_readfile(path):
lines = []
f = open(path)
for line in f.readlines():
lines.append(line.rstrip("\r\n"))
f.close()
return lines
def viml_remove(lst, idx):
del lst[idx]
def viml_split(s, sep):
if sep == "\\zs":
return s
raise VimLParserException("NotImplemented")
def viml_str2nr(s, base=10):
return int(s, base)
def viml_string(obj):
return str(obj)
def viml_has_key(obj, key):
return key in obj
def viml_stridx(a, b):
return a.find(b)
def viml_type(obj):
if isinstance(obj, int):
return 0
elif isinstance(obj, str):
return 1
elif inspect.isfunction(obj):
return 2
elif isinstance(obj, list):
return 3
elif isinstance(obj, dict):
return 4
elif isinstance(obj, float):
return 5
raise VimLParserException('Unknown Type')
NIL = []
TRUE = 1
FALSE = 0
NODE_TOPLEVEL = 1
NODE_COMMENT = 2
NODE_EXCMD = 3
NODE_FUNCTION = 4
NODE_ENDFUNCTION = 5
NODE_DELFUNCTION = 6
NODE_RETURN = 7
NODE_EXCALL = 8
NODE_LET = 9
NODE_UNLET = 10
NODE_LOCKVAR = 11
NODE_UNLOCKVAR = 12
NODE_IF = 13
NODE_ELSEIF = 14
NODE_ELSE = 15
NODE_ENDIF = 16
NODE_WHILE = 17
NODE_ENDWHILE = 18
NODE_FOR = 19
NODE_ENDFOR = 20
NODE_CONTINUE = 21
NODE_BREAK = 22
NODE_TRY = 23
NODE_CATCH = 24
NODE_FINALLY = 25
NODE_ENDTRY = 26
NODE_THROW = 27
NODE_ECHO = 28
NODE_ECHON = 29
NODE_ECHOHL = 30
NODE_ECHOMSG = 31
NODE_ECHOERR = 32
NODE_EXECUTE = 33
NODE_TERNARY = 34
NODE_OR = 35
NODE_AND = 36
NODE_EQUAL = 37
NODE_EQUALCI = 38
NODE_EQUALCS = 39
NODE_NEQUAL = 40
NODE_NEQUALCI = 41
NODE_NEQUALCS = 42
NODE_GREATER = 43
NODE_GREATERCI = 44
NODE_GREATERCS = 45
NODE_GEQUAL = 46
NODE_GEQUALCI = 47
NODE_GEQUALCS = 48
NODE_SMALLER = 49
NODE_SMALLERCI = 50
NODE_SMALLERCS = 51
NODE_SEQUAL = 52
NODE_SEQUALCI = 53
NODE_SEQUALCS = 54
NODE_MATCH = 55
NODE_MATCHCI = 56
NODE_MATCHCS = 57
NODE_NOMATCH = 58
NODE_NOMATCHCI = 59
NODE_NOMATCHCS = 60
NODE_IS = 61
NODE_ISCI = 62
NODE_ISCS = 63
NODE_ISNOT = 64
NODE_ISNOTCI = 65
NODE_ISNOTCS = 66
NODE_ADD = 67
NODE_SUBTRACT = 68
NODE_CONCAT = 69
NODE_MULTIPLY = 70
NODE_DIVIDE = 71
NODE_REMAINDER = 72
NODE_NOT = 73
NODE_MINUS = 74
NODE_PLUS = 75
NODE_SUBSCRIPT = 76
NODE_SLICE = 77
NODE_CALL = 78
NODE_DOT = 79
NODE_NUMBER = 80
NODE_STRING = 81
NODE_LIST = 82
NODE_DICT = 83
NODE_OPTION = 85
NODE_IDENTIFIER = 86
NODE_CURLYNAME = 87
NODE_ENV = 88
NODE_REG = 89
NODE_CURLYNAMEPART = 90
NODE_CURLYNAMEEXPR = 91
NODE_LAMBDA = 92
NODE_PARENEXPR = 93
TOKEN_EOF = 1
TOKEN_EOL = 2
TOKEN_SPACE = 3
TOKEN_OROR = 4
TOKEN_ANDAND = 5
TOKEN_EQEQ = 6
TOKEN_EQEQCI = 7
TOKEN_EQEQCS = 8
TOKEN_NEQ = 9
TOKEN_NEQCI = 10
TOKEN_NEQCS = 11
TOKEN_GT = 12
TOKEN_GTCI = 13
TOKEN_GTCS = 14
TOKEN_GTEQ = 15
TOKEN_GTEQCI = 16
TOKEN_GTEQCS = 17
TOKEN_LT = 18
TOKEN_LTCI = 19
TOKEN_LTCS = 20
TOKEN_LTEQ = 21
TOKEN_LTEQCI = 22
TOKEN_LTEQCS = 23
TOKEN_MATCH = 24
TOKEN_MATCHCI = 25
TOKEN_MATCHCS = 26
TOKEN_NOMATCH = 27
TOKEN_NOMATCHCI = 28
TOKEN_NOMATCHCS = 29
TOKEN_IS = 30
TOKEN_ISCI = 31
TOKEN_ISCS = 32
TOKEN_ISNOT = 33
TOKEN_ISNOTCI = 34
TOKEN_ISNOTCS = 35
TOKEN_PLUS = 36
TOKEN_MINUS = 37
TOKEN_DOT = 38
TOKEN_STAR = 39
TOKEN_SLASH = 40
TOKEN_PERCENT = 41
TOKEN_NOT = 42
TOKEN_QUESTION = 43
TOKEN_COLON = 44
TOKEN_POPEN = 45
TOKEN_PCLOSE = 46
TOKEN_SQOPEN = 47
TOKEN_SQCLOSE = 48
TOKEN_COPEN = 49
TOKEN_CCLOSE = 50
TOKEN_COMMA = 51
TOKEN_NUMBER = 52
TOKEN_SQUOTE = 53
TOKEN_DQUOTE = 54
TOKEN_OPTION = 55
TOKEN_IDENTIFIER = 56
TOKEN_ENV = 57
TOKEN_REG = 58
TOKEN_EQ = 59
TOKEN_OR = 60
TOKEN_SEMICOLON = 61
TOKEN_BACKTICK = 62
TOKEN_DOTDOTDOT = 63
TOKEN_SHARP = 64
TOKEN_ARROW = 65
MAX_FUNC_ARGS = 20
def isalpha(c):
return viml_eqregh(c, "^[A-Za-z]$")
def isalnum(c):
return viml_eqregh(c, "^[0-9A-Za-z]$")
def isdigit(c):
return viml_eqregh(c, "^[0-9]$")
def isodigit(c):
return viml_eqregh(c, "^[0-7]$")
def isxdigit(c):
return viml_eqregh(c, "^[0-9A-Fa-f]$")
def iswordc(c):
return viml_eqregh(c, "^[0-9A-Za-z_]$")
def iswordc1(c):
return viml_eqregh(c, "^[A-Za-z_]$")
def iswhite(c):
return viml_eqregh(c, "^[ \\t]$")
def isnamec(c):
return viml_eqregh(c, "^[0-9A-Za-z_:#]$")
def isnamec1(c):
return viml_eqregh(c, "^[A-Za-z_]$")
def isargname(s):
return viml_eqregh(s, "^[A-Za-z_][0-9A-Za-z_]*$")
def isvarname(s):
return viml_eqregh(s, "^[vgslabwt]:$\\|^\\([vgslabwt]:\\)\\?[A-Za-z_][0-9A-Za-z_#]*$")
# FIXME:
def isidc(c):
return viml_eqregh(c, "^[0-9A-Za-z_]$")
def isupper(c):
return viml_eqregh(c, "^[A-Z]$")
def islower(c):
return viml_eqregh(c, "^[a-z]$")
def ExArg():
ea = AttributeDict({})
ea.forceit = FALSE
ea.addr_count = 0
ea.line1 = 0
ea.line2 = 0
ea.flags = 0
ea.do_ecmd_cmd = ""
ea.do_ecmd_lnum = 0
ea.append = 0
ea.usefilter = FALSE
ea.amount = 0
ea.regname = 0
ea.force_bin = 0
ea.read_edit = 0
ea.force_ff = 0
ea.force_enc = 0
ea.bad_char = 0
ea.linepos = AttributeDict({})
ea.cmdpos = []
ea.argpos = []
ea.cmd = AttributeDict({})
ea.modifiers = []
ea.range = []
ea.argopt = AttributeDict({})
ea.argcmd = AttributeDict({})
return ea
# struct node {
# int type
# pos pos
# node left
# node right
# node cond
# node rest
# node[] list
# node[] rlist
# node[] body
# string op
# string str
# int depth
# variant value
# }
# TOPLEVEL .body
# COMMENT .str
# EXCMD .ea .str
# FUNCTION .ea .body .left .rlist .attr .endfunction
# ENDFUNCTION .ea
# DELFUNCTION .ea .left
# RETURN .ea .left
# EXCALL .ea .left
# LET .ea .op .left .list .rest .right
# UNLET .ea .list
# LOCKVAR .ea .depth .list
# UNLOCKVAR .ea .depth .list
# IF .ea .body .cond .elseif .else .endif
# ELSEIF .ea .body .cond
# ELSE .ea .body
# ENDIF .ea
# WHILE .ea .body .cond .endwhile
# ENDWHILE .ea
# FOR .ea .body .left .list .rest .right .endfor
# ENDFOR .ea
# CONTINUE .ea
# BREAK .ea
# TRY .ea .body .catch .finally .endtry
# CATCH .ea .body .pattern
# FINALLY .ea .body
# ENDTRY .ea
# THROW .ea .left
# ECHO .ea .list
# ECHON .ea .list
# ECHOHL .ea .str
# ECHOMSG .ea .list
# ECHOERR .ea .list
# EXECUTE .ea .list
# TERNARY .cond .left .right
# OR .left .right
# AND .left .right
# EQUAL .left .right
# EQUALCI .left .right
# EQUALCS .left .right
# NEQUAL .left .right
# NEQUALCI .left .right
# NEQUALCS .left .right
# GREATER .left .right
# GREATERCI .left .right
# GREATERCS .left .right
# GEQUAL .left .right
# GEQUALCI .left .right
# GEQUALCS .left .right
# SMALLER .left .right
# SMALLERCI .left .right
# SMALLERCS .left .right
# SEQUAL .left .right
# SEQUALCI .left .right
# SEQUALCS .left .right
# MATCH .left .right
# MATCHCI .left .right
# MATCHCS .left .right
# NOMATCH .left .right
# NOMATCHCI .left .right
# NOMATCHCS .left .right
# IS .left .right
# ISCI .left .right
# ISCS .left .right
# ISNOT .left .right
# ISNOTCI .left .right
# ISNOTCS .left .right
# ADD .left .right
# SUBTRACT .left .right
# CONCAT .left .right
# MULTIPLY .left .right
# DIVIDE .left .right
# REMAINDER .left .right
# NOT .left
# MINUS .left
# PLUS .left
# SUBSCRIPT .left .right
# SLICE .left .rlist
# CALL .left .rlist
# DOT .left .right
# NUMBER .value
# STRING .value
# LIST .value
# DICT .value
# NESTING .left
# OPTION .value
# IDENTIFIER .value
# CURLYNAME .value
# ENV .value
# REG .value
# CURLYNAMEPART .value
# CURLYNAMEEXPR .value
# LAMBDA .rlist .left
# PARENEXPR .value
def Node(type):
return AttributeDict({"type":type})
def Err(msg, pos):
return viml_printf("vimlparser: %s: line %d col %d", msg, pos.lnum, pos.col)
class VimLParser:
def __init__(self, *a000):
if viml_len(a000) > 0:
self.neovim = a000[0]
else:
self.neovim = 0
self.find_command_cache = AttributeDict({})
def push_context(self, node):
viml_insert(self.context, node)
def pop_context(self):
viml_remove(self.context, 0)
def find_context(self, type):
i = 0
for node in self.context:
if node.type == type:
return i
i += 1
return -1
def add_node(self, node):
viml_add(self.context[0].body, node)
def check_missing_endfunction(self, ends, pos):
if self.context[0].type == NODE_FUNCTION:
raise VimLParserException(Err(viml_printf("E126: Missing :endfunction: %s", ends), pos))
def check_missing_endif(self, ends, pos):
if self.context[0].type == NODE_IF or self.context[0].type == NODE_ELSEIF or self.context[0].type == NODE_ELSE:
raise VimLParserException(Err(viml_printf("E171: Missing :endif: %s", ends), pos))
def check_missing_endtry(self, ends, pos):
if self.context[0].type == NODE_TRY or self.context[0].type == NODE_CATCH or self.context[0].type == NODE_FINALLY:
raise VimLParserException(Err(viml_printf("E600: Missing :endtry: %s", ends), pos))
def check_missing_endwhile(self, ends, pos):
if self.context[0].type == NODE_WHILE:
raise VimLParserException(Err(viml_printf("E170: Missing :endwhile: %s", ends), pos))
def check_missing_endfor(self, ends, pos):
if self.context[0].type == NODE_FOR:
raise VimLParserException(Err(viml_printf("E170: Missing :endfor: %s", ends), pos))
def parse(self, reader):
self.reader = reader
self.context = []
toplevel = Node(NODE_TOPLEVEL)
toplevel.body = []
self.push_context(toplevel)
while self.reader.peek() != "<EOF>":
self.parse_one_cmd()
self.check_missing_endfunction("TOPLEVEL", self.reader.getpos())
self.check_missing_endif("TOPLEVEL", self.reader.getpos())
self.check_missing_endtry("TOPLEVEL", self.reader.getpos())
self.check_missing_endwhile("TOPLEVEL", self.reader.getpos())
self.check_missing_endfor("TOPLEVEL", self.reader.getpos())
self.pop_context()
return toplevel
def parse_one_cmd(self):
self.ea = ExArg()
if self.reader.peekn(2) == "#!":
self.parse_hashbang()
self.reader.get()
return
self.reader.skip_white_and_colon()
if self.reader.peekn(1) == "":
self.reader.get()
return
if self.reader.peekn(1) == "\"":
self.parse_comment()
self.reader.get()
return
self.ea.linepos = self.reader.getpos()
self.parse_command_modifiers()
self.parse_range()
self.parse_command()
self.parse_trail()
# FIXME:
def parse_command_modifiers(self):
modifiers = []
while TRUE:
pos = self.reader.tell()
d = ""
if isdigit(self.reader.peekn(1)):
d = self.reader.read_digit()
self.reader.skip_white()
k = self.reader.read_alpha()
c = self.reader.peekn(1)
self.reader.skip_white()
if viml_stridx("aboveleft", k) == 0 and viml_len(k) >= 3:
# abo\%[veleft]
viml_add(modifiers, AttributeDict({"name":"aboveleft"}))
elif viml_stridx("belowright", k) == 0 and viml_len(k) >= 3:
# bel\%[owright]
viml_add(modifiers, AttributeDict({"name":"belowright"}))
elif viml_stridx("browse", k) == 0 and viml_len(k) >= 3:
# bro\%[wse]
viml_add(modifiers, AttributeDict({"name":"browse"}))
elif viml_stridx("botright", k) == 0 and viml_len(k) >= 2:
# bo\%[tright]
viml_add(modifiers, AttributeDict({"name":"botright"}))
elif viml_stridx("confirm", k) == 0 and viml_len(k) >= 4:
# conf\%[irm]
viml_add(modifiers, AttributeDict({"name":"confirm"}))
elif viml_stridx("keepmarks", k) == 0 and viml_len(k) >= 3:
# kee\%[pmarks]
viml_add(modifiers, AttributeDict({"name":"keepmarks"}))
elif viml_stridx("keepalt", k) == 0 and viml_len(k) >= 5:
# keepa\%[lt]
viml_add(modifiers, AttributeDict({"name":"keepalt"}))
elif viml_stridx("keepjumps", k) == 0 and viml_len(k) >= 5:
# keepj\%[umps]
viml_add(modifiers, AttributeDict({"name":"keepjumps"}))
elif viml_stridx("keeppatterns", k) == 0 and viml_len(k) >= 5:
# keepp\%[atterns]
viml_add(modifiers, AttributeDict({"name":"keeppatterns"}))
elif viml_stridx("hide", k) == 0 and viml_len(k) >= 3:
#hid\%[e]
if self.ends_excmds(c):
break
viml_add(modifiers, AttributeDict({"name":"hide"}))
elif viml_stridx("lockmarks", k) == 0 and viml_len(k) >= 3:
# loc\%[kmarks]
viml_add(modifiers, AttributeDict({"name":"lockmarks"}))
elif viml_stridx("leftabove", k) == 0 and viml_len(k) >= 5:
# lefta\%[bove]
viml_add(modifiers, AttributeDict({"name":"leftabove"}))
elif viml_stridx("noautocmd", k) == 0 and viml_len(k) >= 3:
# noa\%[utocmd]
viml_add(modifiers, AttributeDict({"name":"noautocmd"}))
elif viml_stridx("noswapfile", k) == 0 and viml_len(k) >= 3:
# :nos\%[wapfile]
viml_add(modifiers, AttributeDict({"name":"noswapfile"}))
elif viml_stridx("rightbelow", k) == 0 and viml_len(k) >= 6:
#rightb\%[elow]
viml_add(modifiers, AttributeDict({"name":"rightbelow"}))
elif viml_stridx("sandbox", k) == 0 and viml_len(k) >= 3:
# san\%[dbox]
viml_add(modifiers, AttributeDict({"name":"sandbox"}))
elif viml_stridx("silent", k) == 0 and viml_len(k) >= 3:
# sil\%[ent]
if c == "!":
self.reader.get()
viml_add(modifiers, AttributeDict({"name":"silent", "bang":1}))
else:
viml_add(modifiers, AttributeDict({"name":"silent", "bang":0}))
elif k == "tab":
# tab
if d != "":
viml_add(modifiers, AttributeDict({"name":"tab", "count":viml_str2nr(d, 10)}))
else:
viml_add(modifiers, AttributeDict({"name":"tab"}))
elif viml_stridx("topleft", k) == 0 and viml_len(k) >= 2:
# to\%[pleft]
viml_add(modifiers, AttributeDict({"name":"topleft"}))
elif viml_stridx("unsilent", k) == 0 and viml_len(k) >= 3:
# uns\%[ilent]
viml_add(modifiers, AttributeDict({"name":"unsilent"}))
elif viml_stridx("vertical", k) == 0 and viml_len(k) >= 4:
# vert\%[ical]
viml_add(modifiers, AttributeDict({"name":"vertical"}))
elif viml_stridx("verbose", k) == 0 and viml_len(k) >= 4:
# verb\%[ose]
if d != "":
viml_add(modifiers, AttributeDict({"name":"verbose", "count":viml_str2nr(d, 10)}))
else:
viml_add(modifiers, AttributeDict({"name":"verbose", "count":1}))
else:
self.reader.seek_set(pos)
break
self.ea.modifiers = modifiers
# FIXME:
def parse_range(self):
tokens = []
while TRUE:
while TRUE:
self.reader.skip_white()
c = self.reader.peekn(1)
if c == "":
break
if c == ".":
viml_add(tokens, self.reader.getn(1))
elif c == "$":
viml_add(tokens, self.reader.getn(1))
elif c == "'":
self.reader.getn(1)
m = self.reader.getn(1)
if m == "":
break
viml_add(tokens, "'" + m)
elif c == "/":
self.reader.getn(1)
pattern, _ = self.parse_pattern(c)
viml_add(tokens, pattern)
elif c == "?":
self.reader.getn(1)
pattern, _ = self.parse_pattern(c)
viml_add(tokens, pattern)
elif c == "\\":
m = self.reader.p(1)
if m == "&" or m == "?" or m == "/":
self.reader.seek_cur(2)
viml_add(tokens, "\\" + m)
else:
raise VimLParserException(Err("E10: \\\\ should be followed by /, ? or &", self.reader.getpos()))
elif isdigit(c):
viml_add(tokens, self.reader.read_digit())
while TRUE:
self.reader.skip_white()
if self.reader.peekn(1) == "":
break
n = self.reader.read_integer()
if n == "":
break
viml_add(tokens, n)
if self.reader.p(0) != "/" and self.reader.p(0) != "?":
break
if self.reader.peekn(1) == "%":
viml_add(tokens, self.reader.getn(1))
elif self.reader.peekn(1) == "*":
# && &cpoptions !~ '\*'
viml_add(tokens, self.reader.getn(1))
if self.reader.peekn(1) == ";":
viml_add(tokens, self.reader.getn(1))
continue
elif self.reader.peekn(1) == ",":
viml_add(tokens, self.reader.getn(1))
continue
break
self.ea.range = tokens
# FIXME:
def parse_pattern(self, delimiter):
pattern = ""
endc = ""
inbracket = 0
while TRUE:
c = self.reader.getn(1)
if c == "":
break
if c == delimiter and inbracket == 0:
endc = c
break
pattern += c
if c == "\\":
c = self.reader.peekn(1)
if c == "":
raise VimLParserException(Err("E682: Invalid search pattern or delimiter", self.reader.getpos()))
self.reader.getn(1)
pattern += c
elif c == "[":
inbracket += 1
elif c == "]":
inbracket -= 1
return [pattern, endc]
def parse_command(self):
self.reader.skip_white_and_colon()
self.ea.cmdpos = self.reader.getpos()
if self.reader.peekn(1) == "" or self.reader.peekn(1) == "\"":
if not viml_empty(self.ea.modifiers) or not viml_empty(self.ea.range):
self.parse_cmd_modifier_range()
return
self.ea.cmd = self.find_command()
if self.ea.cmd is NIL:
self.reader.setpos(self.ea.cmdpos)
raise VimLParserException(Err(viml_printf("E492: Not an editor command: %s", self.reader.peekline()), self.ea.cmdpos))
if self.reader.peekn(1) == "!" and self.ea.cmd.name != "substitute" and self.ea.cmd.name != "smagic" and self.ea.cmd.name != "snomagic":
self.reader.getn(1)
self.ea.forceit = TRUE
else:
self.ea.forceit = FALSE
if not viml_eqregh(self.ea.cmd.flags, "\\<BANG\\>") and self.ea.forceit and not viml_eqregh(self.ea.cmd.flags, "\\<USERCMD\\>"):
raise VimLParserException(Err("E477: No ! allowed", self.ea.cmdpos))
if self.ea.cmd.name != "!":
self.reader.skip_white()
self.ea.argpos = self.reader.getpos()
if viml_eqregh(self.ea.cmd.flags, "\\<ARGOPT\\>"):
self.parse_argopt()
if self.ea.cmd.name == "write" or self.ea.cmd.name == "update":
if self.reader.p(0) == ">":
if self.reader.p(1) != ">":
raise VimLParserException(Err("E494: Use w or w>>", self.ea.cmdpos))
self.reader.seek_cur(2)
self.reader.skip_white()
self.ea.append = 1
elif self.reader.peekn(1) == "!" and self.ea.cmd.name == "write":
self.reader.getn(1)
self.ea.usefilter = TRUE
if self.ea.cmd.name == "read":
if self.ea.forceit:
self.ea.usefilter = TRUE
self.ea.forceit = FALSE
elif self.reader.peekn(1) == "!":
self.reader.getn(1)
self.ea.usefilter = TRUE
if self.ea.cmd.name == "<" or self.ea.cmd.name == ">":
self.ea.amount = 1
while self.reader.peekn(1) == self.ea.cmd.name:
self.reader.getn(1)
self.ea.amount += 1
self.reader.skip_white()
if viml_eqregh(self.ea.cmd.flags, "\\<EDITCMD\\>") and not self.ea.usefilter:
self.parse_argcmd()
self._parse_command(self.ea.cmd.parser)
def _parse_command(self, parser):
if parser == "parse_cmd_append":
self.parse_cmd_append()
elif parser == "parse_cmd_break":
self.parse_cmd_break()
elif parser == "parse_cmd_call":
self.parse_cmd_call()
elif parser == "parse_cmd_catch":
self.parse_cmd_catch()
elif parser == "parse_cmd_common":
self.parse_cmd_common()
elif parser == "parse_cmd_continue":
self.parse_cmd_continue()
elif parser == "parse_cmd_delfunction":
self.parse_cmd_delfunction()
elif parser == "parse_cmd_echo":
self.parse_cmd_echo()
elif parser == "parse_cmd_echoerr":
self.parse_cmd_echoerr()
elif parser == "parse_cmd_echohl":
self.parse_cmd_echohl()
elif parser == "parse_cmd_echomsg":
self.parse_cmd_echomsg()
elif parser == "parse_cmd_echon":
self.parse_cmd_echon()
elif parser == "parse_cmd_else":
self.parse_cmd_else()
elif parser == "parse_cmd_elseif":
self.parse_cmd_elseif()
elif parser == "parse_cmd_endfor":
self.parse_cmd_endfor()
elif parser == "parse_cmd_endfunction":
self.parse_cmd_endfunction()
elif parser == "parse_cmd_endif":
self.parse_cmd_endif()
elif parser == "parse_cmd_endtry":
self.parse_cmd_endtry()
elif parser == "parse_cmd_endwhile":
self.parse_cmd_endwhile()
elif parser == "parse_cmd_execute":
self.parse_cmd_execute()
elif parser == "parse_cmd_finally":
self.parse_cmd_finally()
elif parser == "parse_cmd_finish":
self.parse_cmd_finish()
elif parser == "parse_cmd_for":
self.parse_cmd_for()
elif parser == "parse_cmd_function":
self.parse_cmd_function()
elif parser == "parse_cmd_if":
self.parse_cmd_if()
elif parser == "parse_cmd_insert":
self.parse_cmd_insert()
elif parser == "parse_cmd_let":
self.parse_cmd_let()
elif parser == "parse_cmd_loadkeymap":
self.parse_cmd_loadkeymap()
elif parser == "parse_cmd_lockvar":
self.parse_cmd_lockvar()
elif parser == "parse_cmd_lua":
self.parse_cmd_lua()
elif parser == "parse_cmd_modifier_range":
self.parse_cmd_modifier_range()
elif parser == "parse_cmd_mzscheme":
self.parse_cmd_mzscheme()
elif parser == "parse_cmd_perl":
self.parse_cmd_perl()
elif parser == "parse_cmd_python":
self.parse_cmd_python()
elif parser == "parse_cmd_python3":
self.parse_cmd_python3()
elif parser == "parse_cmd_return":
self.parse_cmd_return()
elif parser == "parse_cmd_ruby":
self.parse_cmd_ruby()
elif parser == "parse_cmd_tcl":
self.parse_cmd_tcl()
elif parser == "parse_cmd_throw":
self.parse_cmd_throw()
elif parser == "parse_cmd_try":
self.parse_cmd_try()
elif parser == "parse_cmd_unlet":
self.parse_cmd_unlet()
elif parser == "parse_cmd_unlockvar":
self.parse_cmd_unlockvar()
elif parser == "parse_cmd_usercmd":
self.parse_cmd_usercmd()
elif parser == "parse_cmd_while":
self.parse_cmd_while()
elif parser == "parse_wincmd":
self.parse_wincmd()
elif parser == "parse_cmd_syntax":
self.parse_cmd_syntax()
else:
raise VimLParserException(viml_printf("unknown parser: %s", viml_string(parser)))
def find_command(self):
c = self.reader.peekn(1)
name = ""
if c == "k":
self.reader.getn(1)
name = "k"
elif c == "s" and viml_eqregh(self.reader.peekn(5), "\\v^s%(c[^sr][^i][^p]|g|i[^mlg]|I|r[^e])"):
self.reader.getn(1)
name = "substitute"
elif viml_eqregh(c, "[@*!=><&~#]"):
self.reader.getn(1)
name = c
elif self.reader.peekn(2) == "py":
name = self.reader.read_alnum()
else:
pos = self.reader.tell()
name = self.reader.read_alpha()
if name != "del" and viml_eqregh(name, "\\v^d%[elete][lp]$"):
self.reader.seek_set(pos)
name = self.reader.getn(viml_len(name) - 1)
if name == "":
return NIL
if viml_has_key(self.find_command_cache, name):
return self.find_command_cache[name]
cmd = NIL
for x in self.builtin_commands:
if viml_stridx(x.name, name) == 0 and viml_len(name) >= x.minlen:
del cmd
cmd = x
break
if self.neovim:
for x in self.neovim_additional_commands:
if viml_stridx(x.name, name) == 0 and viml_len(name) >= x.minlen:
del cmd
cmd = x
break
for x in self.neovim_removed_commands:
if viml_stridx(x.name, name) == 0 and viml_len(name) >= x.minlen:
del cmd
cmd = NIL
break
# FIXME: user defined command
if (cmd is NIL or cmd.name == "Print") and viml_eqregh(name, "^[A-Z]"):
name += self.reader.read_alnum()
del cmd
cmd = AttributeDict({"name":name, "flags":"USERCMD", "parser":"parse_cmd_usercmd"})
self.find_command_cache[name] = cmd
return cmd
# TODO:
def parse_hashbang(self):
self.reader.getn(-1)
# TODO:
# ++opt=val