from os.path import basename
from functools import reduce
import getopt
+import os
import sys
+import errno
+import time
import re
# Jump to the bottom of this file for the main routine
finished_sizeof = []
finished_switch = []
+# keeps enum objects so that we can refer to them when generating manpages.
+enums = {}
+
+manpaths = False
+
def _h(fmt, *args):
'''
Writes the given line to the header file.
_h('')
_h('#include "xcb.h"')
+ _c('#ifdef HAVE_CONFIG_H')
+ _c('#include "config.h"')
+ _c('#endif')
_c('#include <stdlib.h>')
_c('#include <string.h>')
_c('#include <assert.h>')
+ _c('#include <stddef.h> /* for offsetof() */')
_c('#include "xcbext.h"')
_c('#include "%s.h"', _ns.header)
+ _c('')
+ _c('#define ALIGNOF(type) offsetof(struct { char dummy; type member; }, member)')
+
if _ns.is_ext:
for (n, h) in self.imports:
_hc('#include "%s.h"', h)
Exported function that handles enum declarations.
'''
+ enums[name] = self
+
tname = _t(name)
if namecount[tname] > 1:
tname = _t(name + ('enum',))
count = count - 1
equals = ' = ' if eval != '' else ''
comma = ',' if count > 0 else ''
- _h(' %s%s%s%s', _n(name + (enam,)).upper(), equals, eval, comma)
+ doc = ''
+ if hasattr(self, "doc") and self.doc and enam in self.doc.fields:
+ doc = '\n/**< %s */\n' % self.doc.fields[enam]
+ _h(' %s%s%s%s%s', _n(name + (enam,)).upper(), equals, eval, comma, doc)
_h('} %s;', tname)
def _c_serialize_helper_insert_padding(context, code_lines, space, postpone):
code_lines.append('%s /* insert padding */' % space)
- code_lines.append('%s xcb_pad = -xcb_block_len & 3;' % space)
+ code_lines.append('%s xcb_pad = -xcb_block_len & (xcb_align_to - 1);' % space)
# code_lines.append('%s printf("automatically inserting padding: %%%%d\\n", xcb_pad);' % space)
code_lines.append('%s xcb_buffer_len += xcb_block_len + xcb_pad;' % space)
switch_expr = _c_accessor_get_expr(self.expr, None)
for b in self.bitcases:
- bitcase_expr = _c_accessor_get_expr(b.type.expr, None)
- code_lines.append(' if(%s & %s) {' % (switch_expr, bitcase_expr))
-# code_lines.append(' printf("switch %s: entering bitcase section %s (mask=%%%%d)...\\n", %s);' %
-# (self.name[-1], b.type.name[-1], bitcase_expr))
+ len_expr = len(b.type.expr)
+ for n, expr in enumerate(b.type.expr):
+ bitcase_expr = _c_accessor_get_expr(expr, None)
+ # only one <enumref> in the <bitcase>
+ if len_expr == 1:
+ code_lines.append(' if(%s & %s) {' % (switch_expr, bitcase_expr))
+ # multiple <enumref> in the <bitcase>
+ elif n == 0: # first
+ code_lines.append(' if((%s & %s) ||' % (switch_expr, bitcase_expr))
+ elif len_expr == (n + 1): # last
+ code_lines.append(' (%s & %s)) {' % (switch_expr, bitcase_expr))
+ else: # between first and last
+ code_lines.append(' (%s & %s) ||' % (switch_expr, bitcase_expr))
+
b_prefix = prefix
if b.type.has_name:
b_prefix = prefix + [(b.c_field_name, '.', b.type)]
code_lines.append('%s xcb_parts_idx++;' % space)
count += 1
+ code_lines.append('%s xcb_align_to = ALIGNOF(%s);' % (space, 'char' if field.c_field_type == 'void' else field.c_field_type))
+
need_padding = True
if self.var_followed_by_fixed_fields:
need_padding = False
_c(' %s *xcb_out = *_buffer;', self.c_type)
_c(' unsigned int xcb_out_pad = -sizeof(%s) & 3;', self.c_type)
_c(' unsigned int xcb_buffer_len = sizeof(%s) + xcb_out_pad;', self.c_type)
+ _c(' unsigned int xcb_align_to = 0;')
else:
_c(' char *xcb_out = *_buffer;')
_c(' unsigned int xcb_buffer_len = 0;')
+ _c(' unsigned int xcb_align_to = 0;')
prefix = [('_aux', '->', self)]
aux_ptr = 'xcb_out'
_c(' unsigned int xcb_buffer_len = 0;')
_c(' unsigned int xcb_block_len = 0;')
_c(' unsigned int xcb_pad = 0;')
+ _c(' unsigned int xcb_align_to = 0;')
elif 'sizeof' == context:
param_names = [p[2] for p in params]
_c(' unsigned int xcb_buffer_len = 0;')
_c(' unsigned int xcb_block_len = 0;')
_c(' unsigned int xcb_pad = 0;')
+ _c(' unsigned int xcb_align_to = 0;')
_c('')
for t in temp_vars:
for field in struct_fields:
length = len(field.c_field_type)
# account for '*' pointer_spec
- if not field.type.fixed_size():
+ if not field.type.fixed_size() and not self.is_union:
length += 1
maxtypelen = max(maxtypelen, length)
def _c_complex_field(self, field, space=''):
- if (field.type.fixed_size() or
+ if (field.type.fixed_size() or self.is_union or
# in case of switch with switch children, don't make the field a pointer
# necessary for unserialize to work
(self.is_switch and field.type.is_switch)):
_c_setlevel(1)
_h('')
_h('/**')
- _h(' * Delivers a request to the X server')
+ if hasattr(self, "doc") and self.doc:
+ if self.doc.brief:
+ _h(' * @brief ' + self.doc.brief)
+ else:
+ _h(' * No brief doc yet')
+
+ _h(' *')
_h(' * @param c The connection')
+ param_names = [f.c_field_name for f in param_fields]
+ if hasattr(self, "doc") and self.doc:
+ for field in param_fields:
+ # XXX: hard-coded until we fix xproto.xml
+ base_func_name = self.c_request_name if not aux else self.c_aux_name
+ if base_func_name == 'xcb_change_gc' and field.c_field_name == 'value_mask':
+ field.enum = 'GC'
+ elif base_func_name == 'xcb_change_window_attributes' and field.c_field_name == 'value_mask':
+ field.enum = 'CW'
+ elif base_func_name == 'xcb_create_window' and field.c_field_name == 'value_mask':
+ field.enum = 'CW'
+ if field.enum:
+ # XXX: why the 'xcb' prefix?
+ key = ('xcb', field.enum)
+
+ tname = _t(key)
+ if namecount[tname] > 1:
+ tname = _t(key + ('enum',))
+ _h(' * @param %s A bitmask of #%s values.' % (field.c_field_name, tname))
+
+ if self.doc and field.field_name in self.doc.fields:
+ desc = self.doc.fields[field.field_name]
+ for name in param_names:
+ desc = desc.replace('`%s`' % name, '\\a %s' % (name))
+ desc = desc.split("\n")
+ desc = [line if line != '' else '\\n' for line in desc]
+ _h(' * @param %s %s' % (field.c_field_name, "\n * ".join(desc)))
+ # If there is no documentation yet, we simply don't generate an
+ # @param tag. Doxygen will then warn about missing documentation.
+
_h(' * @return A cookie')
_h(' *')
- _h(' * Delivers a request to the X server.')
+
+ if hasattr(self, "doc") and self.doc:
+ if self.doc.description:
+ desc = self.doc.description
+ for name in param_names:
+ desc = desc.replace('`%s`' % name, '\\a %s' % (name))
+ desc = desc.split("\n")
+ _h(' * ' + "\n * ".join(desc))
+ else:
+ _h(' * No description yet')
+ else:
+ _h(' * Delivers a request to the X server.')
_h(' * ')
if checked:
_h(' * This form can be used only if the request will not cause')
_h(' unsigned int sequence; /**< */')
_h('} %s;', self.c_cookie_type)
+def _man_request(self, name, cookie_type, void, aux):
+ param_fields = [f for f in self.fields if f.visible]
+
+ func_name = self.c_request_name if not aux else self.c_aux_name
+
+ def create_link(linkname):
+ name = 'man/%s.3' % linkname
+ if manpaths:
+ sys.stdout.write(name)
+ f = open(name, 'w')
+ f.write('.so man3/%s.3' % func_name)
+ f.close()
+
+ if manpaths:
+ sys.stdout.write('man/%s.3 ' % func_name)
+ # Our CWD is src/, so this will end up in src/man/
+ f = open('man/%s.3' % func_name, 'w')
+ f.write('.TH %s 3 %s "XCB" "XCB Requests"\n' % (func_name, today))
+ # Left-adjust instead of adjusting to both sides
+ f.write('.ad l\n')
+ f.write('.SH NAME\n')
+ brief = self.doc.brief if hasattr(self, "doc") and self.doc else ''
+ f.write('%s \\- %s\n' % (func_name, brief))
+ f.write('.SH SYNOPSIS\n')
+ # Don't split words (hyphenate)
+ f.write('.hy 0\n')
+ f.write('.B #include <xcb/%s.h>\n' % _ns.header)
+
+ # function prototypes
+ prototype = ''
+ count = len(param_fields)
+ for field in param_fields:
+ count = count - 1
+ c_field_const_type = field.c_field_const_type
+ c_pointer = field.c_pointer
+ if c_pointer == ' ':
+ c_pointer = ''
+ if field.type.need_serialize and not aux:
+ c_field_const_type = "const void"
+ c_pointer = '*'
+ comma = ', ' if count else ');'
+ prototype += '%s\\ %s\\fI%s\\fP%s' % (c_field_const_type, c_pointer, field.c_field_name, comma)
+
+ f.write('.SS Request function\n')
+ f.write('.HP\n')
+ base_func_name = self.c_request_name if not aux else self.c_aux_name
+ f.write('%s \\fB%s\\fP(xcb_connection_t\\ *\\fIconn\\fP, %s\n' % (cookie_type, base_func_name, prototype))
+ create_link('%s_%s' % (base_func_name, ('checked' if void else 'unchecked')))
+ if not void:
+ f.write('.PP\n')
+ f.write('.SS Reply datastructure\n')
+ f.write('.nf\n')
+ f.write('.sp\n')
+ f.write('typedef %s %s {\n' % (self.reply.c_container, self.reply.c_type))
+ struct_fields = []
+ maxtypelen = 0
+
+ for field in self.reply.fields:
+ if not field.type.fixed_size() and not self.is_switch and not self.is_union:
+ continue
+ if field.wire:
+ struct_fields.append(field)
+
+ for field in struct_fields:
+ length = len(field.c_field_type)
+ # account for '*' pointer_spec
+ if not field.type.fixed_size():
+ length += 1
+ maxtypelen = max(maxtypelen, length)
+
+ def _c_complex_field(self, field, space=''):
+ if (field.type.fixed_size() or
+ # in case of switch with switch children, don't make the field a pointer
+ # necessary for unserialize to work
+ (self.is_switch and field.type.is_switch)):
+ spacing = ' ' * (maxtypelen - len(field.c_field_type))
+ f.write('%s %s%s \\fI%s\\fP%s;\n' % (space, field.c_field_type, spacing, field.c_field_name, field.c_subscript))
+ else:
+ spacing = ' ' * (maxtypelen - (len(field.c_field_type) + 1))
+ f.write('ELSE %s = %s\n' % (field.c_field_type, field.c_field_name))
+ #_h('%s %s%s *%s%s; /**< */', space, field.c_field_type, spacing, field.c_field_name, field.c_subscript)
+
+ if not self.is_switch:
+ for field in struct_fields:
+ _c_complex_field(self, field)
+ else:
+ for b in self.bitcases:
+ space = ''
+ if b.type.has_name:
+ space = ' '
+ for field in b.type.fields:
+ _c_complex_field(self, field, space)
+ if b.type.has_name:
+ print >> sys.stderr, 'ERROR: New unhandled documentation case'
+ pass
+
+ f.write('} \\fB%s\\fP;\n' % self.reply.c_type)
+ f.write('.fi\n')
+
+ f.write('.SS Reply function\n')
+ f.write('.HP\n')
+ f.write(('%s *\\fB%s\\fP(xcb_connection_t\\ *\\fIconn\\fP, %s\\ '
+ '\\fIcookie\\fP, xcb_generic_error_t\\ **\\fIe\\fP);\n') %
+ (self.c_reply_type, self.c_reply_name, self.c_cookie_type))
+ create_link('%s' % self.c_reply_name)
+
+ has_accessors = False
+ for field in self.reply.fields:
+ if field.type.is_list and not field.type.fixed_size():
+ has_accessors = True
+ elif field.prev_varsized_field is not None or not field.type.fixed_size():
+ has_accessors = True
+
+ if has_accessors:
+ f.write('.SS Reply accessors\n')
+
+ def _c_accessors_field(self, field):
+ '''
+ Declares the accessor functions for a non-list field that follows a variable-length field.
+ '''
+ c_type = self.c_type
+
+ # special case: switch
+ switch_obj = self if self.is_switch else None
+ if self.is_bitcase:
+ switch_obj = self.parents[-1]
+ if switch_obj is not None:
+ c_type = switch_obj.c_type
+
+ if field.type.is_simple:
+ f.write('%s %s (const %s *reply)\n' % (field.c_field_type, field.c_accessor_name, c_type))
+ create_link('%s' % field.c_accessor_name)
+ else:
+ f.write('%s *%s (const %s *reply)\n' % (field.c_field_type, field.c_accessor_name, c_type))
+ create_link('%s' % field.c_accessor_name)
+
+ def _c_accessors_list(self, field):
+ '''
+ Declares the accessor functions for a list field.
+ Declares a direct-accessor function only if the list members are fixed size.
+ Declares length and get-iterator functions always.
+ '''
+ list = field.type
+ c_type = self.reply.c_type
+
+ # special case: switch
+ # in case of switch, 2 params have to be supplied to certain accessor functions:
+ # 1. the anchestor object (request or reply)
+ # 2. the (anchestor) switch object
+ # the reason is that switch is either a child of a request/reply or nested in another switch,
+ # so whenever we need to access a length field, we might need to refer to some anchestor type
+ switch_obj = self if self.is_switch else None
+ if self.is_bitcase:
+ switch_obj = self.parents[-1]
+ if switch_obj is not None:
+ c_type = switch_obj.c_type
+
+ params = []
+ fields = {}
+ parents = self.parents if hasattr(self, 'parents') else [self]
+ # 'R': parents[0] is always the 'toplevel' container type
+ params.append(('const %s *\\fIreply\\fP' % parents[0].c_type, parents[0]))
+ fields.update(_c_helper_field_mapping(parents[0], [('R', '->', parents[0])], flat=True))
+ # auxiliary object for 'R' parameters
+ R_obj = parents[0]
+
+ if switch_obj is not None:
+ # now look where the fields are defined that are needed to evaluate
+ # the switch expr, and store the parent objects in accessor_params and
+ # the fields in switch_fields
+
+ # 'S': name for the 'toplevel' switch
+ toplevel_switch = parents[1]
+ params.append(('const %s *S' % toplevel_switch.c_type, toplevel_switch))
+ fields.update(_c_helper_field_mapping(toplevel_switch, [('S', '->', toplevel_switch)], flat=True))
+
+ # initialize prefix for everything "below" S
+ prefix_str = '/* %s */ S' % toplevel_switch.name[-1]
+ prefix = [(prefix_str, '->', toplevel_switch)]
+
+ # look for fields in the remaining containers
+ for p in parents[2:] + [self]:
+ # the separator between parent and child is always '.' here,
+ # because of nested switch statements
+ if not p.is_bitcase or (p.is_bitcase and p.has_name):
+ prefix.append((p.name[-1], '.', p))
+ fields.update(_c_helper_field_mapping(p, prefix, flat=True))
+
+ # auxiliary object for 'S' parameter
+ S_obj = parents[1]
+
+ if list.member.fixed_size():
+ idx = 1 if switch_obj is not None else 0
+ f.write('.HP\n')
+ f.write('%s *\\fB%s\\fP(%s);\n' %
+ (field.c_field_type, field.c_accessor_name, params[idx][0]))
+ create_link('%s' % field.c_accessor_name)
+
+ f.write('.HP\n')
+ f.write('int \\fB%s\\fP(const %s *\\fIreply\\fP);\n' %
+ (field.c_length_name, c_type))
+ create_link('%s' % field.c_length_name)
+
+ if field.type.member.is_simple:
+ f.write('.HP\n')
+ f.write('xcb_generic_iterator_t \\fB%s\\fP(const %s *\\fIreply\\fP);\n' %
+ (field.c_end_name, c_type))
+ create_link('%s' % field.c_end_name)
+ else:
+ f.write('.HP\n')
+ f.write('%s \\fB%s\\fP(const %s *\\fIreply\\fP);\n' %
+ (field.c_iterator_type, field.c_iterator_name,
+ c_type))
+ create_link('%s' % field.c_iterator_name)
+
+ for field in self.reply.fields:
+ if field.type.is_list and not field.type.fixed_size():
+ _c_accessors_list(self, field)
+ elif field.prev_varsized_field is not None or not field.type.fixed_size():
+ _c_accessors_field(self, field)
+
+
+ f.write('.br\n')
+ # Re-enable hyphenation and adjusting to both sides
+ f.write('.hy 1\n')
+
+ # argument reference
+ f.write('.SH REQUEST ARGUMENTS\n')
+ f.write('.IP \\fI%s\\fP 1i\n' % 'conn')
+ f.write('The XCB connection to X11.\n')
+ for field in param_fields:
+ f.write('.IP \\fI%s\\fP 1i\n' % (field.c_field_name))
+ printed_enum = False
+ # XXX: hard-coded until we fix xproto.xml
+ if base_func_name == 'xcb_change_gc' and field.c_field_name == 'value_mask':
+ field.enum = 'GC'
+ elif base_func_name == 'xcb_change_window_attributes' and field.c_field_name == 'value_mask':
+ field.enum = 'CW'
+ elif base_func_name == 'xcb_create_window' and field.c_field_name == 'value_mask':
+ field.enum = 'CW'
+ if hasattr(field, "enum") and field.enum:
+ # XXX: why the 'xcb' prefix?
+ key = ('xcb', field.enum)
+ if key in enums:
+ f.write('One of the following values:\n')
+ f.write('.RS 1i\n')
+ enum = enums[key]
+ count = len(enum.values)
+ for (enam, eval) in enum.values:
+ count = count - 1
+ f.write('.IP \\fI%s\\fP 1i\n' % (_n(key + (enam,)).upper()))
+ if hasattr(enum, "doc") and enum.doc and enam in enum.doc.fields:
+ desc = re.sub(r'`([^`]+)`', r'\\fI\1\\fP', enum.doc.fields[enam])
+ f.write('%s\n' % desc)
+ else:
+ f.write('TODO: NOT YET DOCUMENTED.\n')
+ f.write('.RE\n')
+ f.write('.RS 1i\n')
+ printed_enum = True
+
+ if hasattr(self, "doc") and self.doc and field.field_name in self.doc.fields:
+ desc = self.doc.fields[field.field_name]
+ desc = re.sub(r'`([^`]+)`', r'\\fI\1\\fP', desc)
+ if printed_enum:
+ f.write('\n')
+ f.write('%s\n' % desc)
+ else:
+ f.write('TODO: NOT YET DOCUMENTED.\n')
+ if printed_enum:
+ f.write('.RE\n')
+
+ # Reply reference
+ if not void:
+ f.write('.SH REPLY FIELDS\n')
+ # These fields are present in every reply:
+ f.write('.IP \\fI%s\\fP 1i\n' % 'response_type')
+ f.write(('The type of this reply, in this case \\fI%s\\fP. This field '
+ 'is also present in the \\fIxcb_generic_reply_t\\fP and can '
+ 'be used to tell replies apart from each other.\n') %
+ _n(self.reply.name).upper())
+ f.write('.IP \\fI%s\\fP 1i\n' % 'sequence')
+ f.write('The sequence number of the last request processed by the X11 server.\n')
+ f.write('.IP \\fI%s\\fP 1i\n' % 'length')
+ f.write('The length of the reply, in words (a word is 4 bytes).\n')
+ for field in self.reply.fields:
+ if (field.c_field_name in frozenset(['response_type', 'sequence', 'length']) or
+ field.c_field_name.startswith('pad')):
+ continue
+
+ if field.type.is_list and not field.type.fixed_size():
+ continue
+ elif field.prev_varsized_field is not None or not field.type.fixed_size():
+ continue
+ f.write('.IP \\fI%s\\fP 1i\n' % (field.c_field_name))
+ printed_enum = False
+ if hasattr(field, "enum") and field.enum:
+ # XXX: why the 'xcb' prefix?
+ key = ('xcb', field.enum)
+ if key in enums:
+ f.write('One of the following values:\n')
+ f.write('.RS 1i\n')
+ enum = enums[key]
+ count = len(enum.values)
+ for (enam, eval) in enum.values:
+ count = count - 1
+ f.write('.IP \\fI%s\\fP 1i\n' % (_n(key + (enam,)).upper()))
+ if enum.doc and enam in enum.doc.fields:
+ desc = re.sub(r'`([^`]+)`', r'\\fI\1\\fP', enum.doc.fields[enam])
+ f.write('%s\n' % desc)
+ else:
+ f.write('TODO: NOT YET DOCUMENTED.\n')
+ f.write('.RE\n')
+ f.write('.RS 1i\n')
+ printed_enum = True
+
+ if hasattr(self.reply, "doc") and self.reply.doc and field.field_name in self.reply.doc.fields:
+ desc = self.reply.doc.fields[field.field_name]
+ desc = re.sub(r'`([^`]+)`', r'\\fI\1\\fP', desc)
+ if printed_enum:
+ f.write('\n')
+ f.write('%s\n' % desc)
+ else:
+ f.write('TODO: NOT YET DOCUMENTED.\n')
+ if printed_enum:
+ f.write('.RE\n')
+
+
+
+ # text description
+ f.write('.SH DESCRIPTION\n')
+ if hasattr(self, "doc") and self.doc and self.doc.description:
+ desc = self.doc.description
+ desc = re.sub(r'`([^`]+)`', r'\\fI\1\\fP', desc)
+ lines = desc.split('\n')
+ f.write('\n'.join(lines) + '\n')
+
+ f.write('.SH RETURN VALUE\n')
+ if void:
+ f.write(('Returns an \\fIxcb_void_cookie_t\\fP. Errors (if any) '
+ 'have to be handled in the event loop.\n\nIf you want to '
+ 'handle errors directly with \\fIxcb_request_check\\fP '
+ 'instead, use \\fI%s_checked\\fP. See '
+ '\\fBxcb-requests(3)\\fP for details.\n') % (base_func_name))
+ else:
+ f.write(('Returns an \\fI%s\\fP. Errors have to be handled when '
+ 'calling the reply function \\fI%s\\fP.\n\nIf you want to '
+ 'handle errors in the event loop instead, use '
+ '\\fI%s_unchecked\\fP. See \\fBxcb-requests(3)\\fP for '
+ 'details.\n') %
+ (cookie_type, self.c_reply_name, base_func_name))
+ f.write('.SH ERRORS\n')
+ if hasattr(self, "doc") and self.doc:
+ for errtype, errtext in self.doc.errors.items():
+ f.write('.IP \\fI%s\\fP 1i\n' % (_t(('xcb', errtype, 'error'))))
+ errtext = re.sub(r'`([^`]+)`', r'\\fI\1\\fP', errtext)
+ f.write('%s\n' % (errtext))
+ if not hasattr(self, "doc") or not self.doc or len(self.doc.errors) == 0:
+ f.write('This request does never generate any errors.\n')
+ if hasattr(self, "doc") and self.doc and self.doc.example:
+ f.write('.SH EXAMPLE\n')
+ f.write('.nf\n')
+ f.write('.sp\n')
+ lines = self.doc.example.split('\n')
+ f.write('\n'.join(lines) + '\n')
+ f.write('.fi\n')
+ f.write('.SH SEE ALSO\n')
+ if hasattr(self, "doc") and self.doc:
+ see = ['.BR %s (3)' % 'xcb-requests']
+ if self.doc.example:
+ see.append('.BR %s (3)' % 'xcb-examples')
+ for seename, seetype in self.doc.see.items():
+ if seetype == 'program':
+ see.append('.BR %s (1)' % seename)
+ elif seetype == 'event':
+ see.append('.BR %s (3)' % _t(('xcb', seename, 'event')))
+ elif seetype == 'request':
+ see.append('.BR %s (3)' % _n(('xcb', seename)))
+ elif seetype == 'function':
+ see.append('.BR %s (3)' % seename)
+ else:
+ see.append('TODO: %s (type %s)' % (seename, seetype))
+ f.write(',\n'.join(see) + '\n')
+ f.write('.SH AUTHOR\n')
+ f.write('Generated from %s.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.\n' % _ns.header)
+ f.close()
+
+def _man_event(self, name):
+ if manpaths:
+ sys.stdout.write('man/%s.3 ' % self.c_type)
+ # Our CWD is src/, so this will end up in src/man/
+ f = open('man/%s.3' % self.c_type, 'w')
+ f.write('.TH %s 3 %s "XCB" "XCB Events"\n' % (self.c_type, today))
+ # Left-adjust instead of adjusting to both sides
+ f.write('.ad l\n')
+ f.write('.SH NAME\n')
+ brief = self.doc.brief if hasattr(self, "doc") and self.doc else ''
+ f.write('%s \\- %s\n' % (self.c_type, brief))
+ f.write('.SH SYNOPSIS\n')
+ # Don't split words (hyphenate)
+ f.write('.hy 0\n')
+ f.write('.B #include <xcb/%s.h>\n' % _ns.header)
+
+ f.write('.PP\n')
+ f.write('.SS Event datastructure\n')
+ f.write('.nf\n')
+ f.write('.sp\n')
+ f.write('typedef %s %s {\n' % (self.c_container, self.c_type))
+ struct_fields = []
+ maxtypelen = 0
+
+ for field in self.fields:
+ if not field.type.fixed_size() and not self.is_switch and not self.is_union:
+ continue
+ if field.wire:
+ struct_fields.append(field)
+
+ for field in struct_fields:
+ length = len(field.c_field_type)
+ # account for '*' pointer_spec
+ if not field.type.fixed_size():
+ length += 1
+ maxtypelen = max(maxtypelen, length)
+
+ def _c_complex_field(self, field, space=''):
+ if (field.type.fixed_size() or
+ # in case of switch with switch children, don't make the field a pointer
+ # necessary for unserialize to work
+ (self.is_switch and field.type.is_switch)):
+ spacing = ' ' * (maxtypelen - len(field.c_field_type))
+ f.write('%s %s%s \\fI%s\\fP%s;\n' % (space, field.c_field_type, spacing, field.c_field_name, field.c_subscript))
+ else:
+ print >> sys.stderr, 'ERROR: New unhandled documentation case'
+
+ if not self.is_switch:
+ for field in struct_fields:
+ _c_complex_field(self, field)
+ else:
+ for b in self.bitcases:
+ space = ''
+ if b.type.has_name:
+ space = ' '
+ for field in b.type.fields:
+ _c_complex_field(self, field, space)
+ if b.type.has_name:
+ print >> sys.stderr, 'ERROR: New unhandled documentation case'
+ pass
+
+ f.write('} \\fB%s\\fP;\n' % self.c_type)
+ f.write('.fi\n')
+
+
+ f.write('.br\n')
+ # Re-enable hyphenation and adjusting to both sides
+ f.write('.hy 1\n')
+
+ # argument reference
+ f.write('.SH EVENT FIELDS\n')
+ f.write('.IP \\fI%s\\fP 1i\n' % 'response_type')
+ f.write(('The type of this event, in this case \\fI%s\\fP. This field is '
+ 'also present in the \\fIxcb_generic_event_t\\fP and can be used '
+ 'to tell events apart from each other.\n') % _n(name).upper())
+ f.write('.IP \\fI%s\\fP 1i\n' % 'sequence')
+ f.write('The sequence number of the last request processed by the X11 server.\n')
+
+ if not self.is_switch:
+ for field in struct_fields:
+ # Skip the fields which every event has, we already documented
+ # them (see above).
+ if field.c_field_name in ('response_type', 'sequence'):
+ continue
+ if isinstance(field.type, PadType):
+ continue
+ f.write('.IP \\fI%s\\fP 1i\n' % (field.c_field_name))
+ if hasattr(self, "doc") and self.doc and field.field_name in self.doc.fields:
+ desc = self.doc.fields[field.field_name]
+ desc = re.sub(r'`([^`]+)`', r'\\fI\1\\fP', desc)
+ f.write('%s\n' % desc)
+ else:
+ f.write('NOT YET DOCUMENTED.\n')
+
+ # text description
+ f.write('.SH DESCRIPTION\n')
+ if hasattr(self, "doc") and self.doc and self.doc.description:
+ desc = self.doc.description
+ desc = re.sub(r'`([^`]+)`', r'\\fI\1\\fP', desc)
+ lines = desc.split('\n')
+ f.write('\n'.join(lines) + '\n')
+
+ if hasattr(self, "doc") and self.doc and self.doc.example:
+ f.write('.SH EXAMPLE\n')
+ f.write('.nf\n')
+ f.write('.sp\n')
+ lines = self.doc.example.split('\n')
+ f.write('\n'.join(lines) + '\n')
+ f.write('.fi\n')
+ f.write('.SH SEE ALSO\n')
+ if hasattr(self, "doc") and self.doc:
+ see = ['.BR %s (3)' % 'xcb_generic_event_t']
+ if self.doc.example:
+ see.append('.BR %s (3)' % 'xcb-examples')
+ for seename, seetype in self.doc.see.items():
+ if seetype == 'program':
+ see.append('.BR %s (1)' % seename)
+ elif seetype == 'event':
+ see.append('.BR %s (3)' % _t(('xcb', seename, 'event')))
+ elif seetype == 'request':
+ see.append('.BR %s (3)' % _n(('xcb', seename)))
+ elif seetype == 'function':
+ see.append('.BR %s (3)' % seename)
+ else:
+ see.append('TODO: %s (type %s)' % (seename, seetype))
+ f.write(',\n'.join(see) + '\n')
+ f.write('.SH AUTHOR\n')
+ f.write('Generated from %s.xml. Contact xcb@lists.freedesktop.org for corrections and improvements.\n' % _ns.header)
+ f.close()
+
+
def c_request(self, name):
'''
Exported function that handles request declarations.
_c_request_helper(self, name, 'xcb_void_cookie_t', True, False, True)
_c_request_helper(self, name, 'xcb_void_cookie_t', True, True, True)
+ # We generate the manpage afterwards because _c_type_setup has been called.
+ # TODO: what about aux helpers?
+ cookie_type = self.c_cookie_type if self.reply else 'xcb_void_cookie_t'
+ _man_request(self, name, cookie_type, not self.reply, False)
def c_event(self, name):
'''
Exported function that handles event declarations.
'''
+
+ # The generic event structure xcb_ge_event_t has the full_sequence field
+ # at the 32byte boundary. That's why we've to inject this field into GE
+ # events while generating the structure for them. Otherwise we would read
+ # garbage (the internal full_sequence) when accessing normal event fields
+ # there.
+ if hasattr(self, 'is_ge_event') and self.is_ge_event and self.name == name:
+ event_size = 0
+ for field in self.fields:
+ if field.type.size != None and field.type.nmemb != None:
+ event_size += field.type.size * field.type.nmemb
+ if event_size == 32:
+ full_sequence = Field(tcard32, tcard32.name, 'full_sequence', False, True, True)
+ idx = self.fields.index(field)
+ self.fields.insert(idx + 1, full_sequence)
+ break
+
_c_type_setup(self, name, ('event',))
# Opcode define
_h('')
_h('typedef %s %s;', _t(self.name + ('event',)), _t(name + ('event',)))
+ _man_event(self, name)
+
def c_error(self, name):
'''
Exported function that handles error declarations.
# Check for the argument that specifies path to the xcbgen python package.
try:
- opts, args = getopt.getopt(sys.argv[1:], 'p:')
+ opts, args = getopt.getopt(sys.argv[1:], 'p:m')
except getopt.GetoptError as err:
print(err)
print('Usage: c_client.py [-p path] file.xml')
for (opt, arg) in opts:
if opt == '-p':
- sys.path.append(arg)
+ sys.path.insert(1, arg)
+ elif opt == '-m':
+ manpaths = True
+ sys.stdout.write('man_MANS = ')
# Import the module class
try:
from xcbgen.state import Module
+ from xcbgen.xtypes import *
except ImportError:
print('''
Failed to load the xcbgen Python package!
''')
raise
+# Ensure the man subdirectory exists
+try:
+ os.mkdir('man')
+except OSError as e:
+ if e.errno != errno.EEXIST:
+ raise
+
+today = time.strftime('%Y-%m-%d', time.gmtime(os.path.getmtime(args[0])))
+
# Parse the xml header
module = Module(args[0], output)
projects / free-sw / xcb / libxcb / blobdiff