#!/usr/bin/perl -plw

use strict;

BEGIN {

	%::const = map { $_ => 1 } (

		# constants in xcb.h

		"XCBNone",

		"XCBCopyFromParent",

		"XCBCurrentTime",

		"XCBNoSymbol",

		"XCBError",

		"XCBReply",

		# renamed constants

		"XCBButtonAny",

		"XCBButton1",

		"XCBButton2",

		"XCBButton3",

		"XCBButton4",

		"XCBButton5",

		"XCBHostInsert",

		"XCBHostDelete",

		"XCBGlxGC_GL_CURRENT_BIT",

		"XCBGlxGC_GL_POINT_BIT",

		"XCBGlxGC_GL_LINE_BIT",

		"XCBGlxGC_GL_POLYGON_BIT",

		"XCBGlxGC_GL_POLYGON_STIPPLE_BIT",

		"XCBGlxGC_GL_PIXEL_MODE_BIT",

		"XCBGlxGC_GL_LIGHTING_BIT",

		"XCBGlxGC_GL_FOG_BIT",

		"XCBGlxGC_GL_DEPTH_BUFFER_BIT",

		"XCBGlxGC_GL_ACCUM_BUFFER_BIT",

		"XCBGlxGC_GL_STENCIL_BUFFER_BIT",

		"XCBGlxGC_GL_VIEWPORT_BIT",

		"XCBGlxGC_GL_TRANSFORM_BIT",

		"XCBGlxGC_GL_ENABLE_BIT",

		"XCBGlxGC_GL_COLOR_BUFFER_BIT",

		"XCBGlxGC_GL_HINT_BIT",

		"XCBGlxGC_GL_EVAL_BIT",

		"XCBGlxGC_GL_LIST_BIT",

		"XCBGlxGC_GL_TEXTURE_BIT",

		"XCBGlxGC_GL_SCISSOR_BIT",

		"XCBGlxGC_GL_ALL_ATTRIB_BITS",

		"XCBGlxRM_GL_RENDER",

		"XCBGlxRM_GL_FEEDBACK",

		"XCBGlxRM_GL_SELECT",

	);

	open(CONST, shift) or die "failed to open constants list: $!";

	while(<CONST>)

	{

		chomp;

		die "invalid constant name: \"$_\"" unless /^XCB[A-Za-z0-9_]*$/;

		$::const{$_} = 1;

	}

	close(CONST);

}

sub convert($$)

{

	local $_ = shift;

	my ($fun) = @_;

	return "xcb_generate_id" if /^xcb_[a-z0-9_]+_new$/ or /^XCB[A-Z0-9]+New$/;

	return "uint$1_t" if /^CARD(8|16|32)$/;

	return "int$1_t" if /^INT(8|16|32)$/;

	return "uint8_t" if $_ eq 'BOOL' or $_ eq 'BYTE';

	return $_ if /^[A-Z0-9]*_[A-Z0-9_]*$/ or !/^XCB(.+)/;

	my $const = defined $::const{$_};

	$_ = $1;

	s/^(GX|RandR|XFixes|XP|XvMC|ScreenSaver)(.)/uc($1) . "_" . $2/e unless /^ScreenSaver(?:Reset|Active)$/;

	my %abbr = (

		"Iter" => "iterator",

		"Req" => "request",

		"Rep" => "reply",

	);

	my $word;

	if(/CHAR2B|INT64|FLOAT32|FLOAT64|BOOL32|STRING8/)

	{

		$word = qr/[A-Z](?:[A-Z0-9]*|[a-z]*)/;

	} else {

		$word = qr/[0-9]+|[A-Z](?:[A-Z]*|[a-z]*)/;

	}

	s/($word)_?(?=[0-9A-Z]|$)/"_" . ($abbr{$1} or lc($1))/eg;

	s/^_shape_shape_/_shape_/;

	s/^_xf_?86_dri/_xf86dri/;

	$_ = "_family_decnet" if $_ eq "_family_de_cnet";

	return "XCB" . uc($_) if $const;

	$_ .= "_t" unless $fun or /_id$/;

	return "xcb" . $_;

}

s/^(\s*#\s*include\s*<)X11\/XCB\//$1xcb\//;

s/([_A-Za-z][_A-Za-z0-9]*)([ \t]*\()?/convert($1, defined $2) . ($2 or "")/eg;