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###############################################################################
# BRLTTY - A background process providing access to the console screen (when in
# text mode) for a blind person using a refreshable braille display.
#
# Copyright (C) 1995-2025 by The BRLTTY Developers.
#
# BRLTTY comes with ABSOLUTELY NO WARRANTY.
#
# This is free software, placed under the terms of the
# GNU Lesser General Public License, as published by the Free Software
# Foundation; either version 2.1 of the License, or (at your option) any
# later version. Please see the file LICENSE-LGPL for details.
#
# Web Page: http://brltty.app/
#
# This software is maintained by Dave Mielke <dave@mielke.cc>.
###############################################################################
BEGIN {
brlCommandValue = 0
brlBlockValue = 0
brlKeyValue = 0
brlBlockDeprecations["CLIP_NEW"] = "CUTBEGIN"
brlBlockDeprecations["CLIP_ADD"] = "CUTAPPEND"
brlBlockDeprecations["COPY_LINE"] = "CUTLINE"
brlBlockDeprecations["COPY_RECT"] = "CUTRECT"
brlBlockDeprecations["CLIP_COPY"] = "COPYCHARS"
brlBlockDeprecations["CLIP_APPEND"] = "APNDCHARS"
}
/^[[:space:]]*BRL_CMD_/ {
brlCommand(substr($1, 9), $1, brlCommandValue++, getComment($0))
next
}
/^[[:space:]]*BRL_BLK_/ {
prefix = substr($1, 1, 8)
name = substr($1, 9)
value = brlBlockValue++
help = getComment($0)
if (help !~ /^\(/) {
brlBlock(name, $1, value, help)
if (name in brlBlockDeprecations) {
alias = brlBlockDeprecations[name]
brlBlock(alias, prefix alias, value, "deprecated definition of " name " - " help)
}
}
next
}
/^[[:space:]]*BRL_KEY_/ {
gsub(",", "", $1)
key = tolower(substr($1, 9))
gsub("_", "-", key)
brlKey(substr($1, 9), $1, brlKeyValue++, key " key")
next
}
/#define[[:space:]]+BRL_FLG_/ {
brlFlag(substr($2, 9), $2, getDefineValue(), getComment($0))
next
}
/#define[[:space:]]+BRL_DOT/ {
value = getDefineValue()
sub("^.*\\(", "", value)
sub("\\).*$", "", value)
value = 2 ^ (value - 1)
brlDot(substr($2, 8), $2, value, getComment($0))
next
}
function writeHeaderPrologue(symbol, copyrightFile) {
writeCopyright(copyrightFile)
headerSymbol = symbol
print "#ifndef " headerSymbol
writeMacroDefinition(headerSymbol)
print ""
print "#ifdef __cplusplus"
print "extern \"C\" {"
print "#endif /* __cplusplus */"
print ""
}
function writeCopyright(file) {
if (length(file) > 0) {
while (getline line <file == 1) {
if (match(line, "^ */\\* *$")) {
print line
while (getline line <file == 1) {
print line
if (match(line, "^ *\\*/ *$")) break
}
print ""
break
}
}
}
}
function writeHeaderEpilogue() {
print ""
print "#ifdef __cplusplus"
print "}"
print "#endif /* __cplusplus */"
print ""
print "#endif /* " headerSymbol " */"
}
function writeMacroDefinition(name, definition, help) {
statement = "#define " name
if (length(definition) > 0) statement = statement " " definition
if (length(help) > 0) print makeDoxygenComment(help)
print statement
}
function getComment(line, comment, last) {
comment = ""
if (match(line, "/\\*")) {
line = substr(line, RSTART+2)
gsub("^\\**<? *", "", line)
while (1) {
last = gsub("\\*/.*$", "", line)
gsub(" *$", "", line)
if (length(comment) > 0) comment = comment " "
comment = comment line
if (last) break
getline line
gsub("^[[:space:]]*\\**[[:space:]]*", "", line)
}
} else if (match(line, "//")) {
comment = substr(line, RSTART+2);
gsub("^ *", "", comment)
gsub("\\*/.*$", "", comment)
gsub(" *$", "", comment)
}
return comment
}
function getDefineValue() {
if ($3 !~ "^\\(") return getNormalizedConstant($3)
if (match($0, "\\([^)]*\\)")) return substr($0, RSTART, RLENGTH)
return ""
}
function getNormalizedConstant(value) {
if (value ~ "^UINT64_C\\(.+\\)$") value = substr(value, 10, length(value)-10)
return value
}
function makeDoxygenComment(text) {
return "/** " text " */"
}
function makeTranslatorNote(text) {
return "// xgettext: " text
}
function beginDoxygenFile() {
print "/** \\file"
print " */"
print ""
}
function getBrlapiKeyName(name) {
if (name == "ENTER") return "LINEFEED"
if (name ~ /^CURSOR_/) return substr(name, 8)
return name
}
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