+# Pretty printing macros.
+#
+# Author: Philippe Proulx <pproulx@efficios.com>
+
+# PPRINT_INIT(): initializes the pretty printing system.
+#
+# Use this macro before using any other PPRINT_* macro.
+AC_DEFUN([PPRINT_INIT], [
+ m4_define([PPRINT_CONFIG_TS], 50)
+ m4_define([PPRINT_CONFIG_INDENT], 2)
+ PPRINT_YES_MSG=yes
+ PPRINT_NO_MSG=no
+
+ # find tput, which tells us if colors are supported and gives us color codes
+ AC_PATH_PROG(pprint_tput, tput)
+
+ AS_IF([test -n "$pprint_tput"], [
+ AS_IF([test -n "$PS1" && test `"$pprint_tput" colors` -ge 8 && test -t 1], [
+ # interactive shell and colors supported and standard output
+ # file descriptor is opened on a terminal
+ PPRINT_COLOR_TXTBLK=`"$pprint_tput" setf 0`
+ PPRINT_COLOR_TXTBLU=`"$pprint_tput" setf 1`
+ PPRINT_COLOR_TXTGRN=`"$pprint_tput" setf 2`
+ PPRINT_COLOR_TXTCYN=`"$pprint_tput" setf 3`
+ PPRINT_COLOR_TXTRED=`"$pprint_tput" setf 4`
+ PPRINT_COLOR_TXTPUR=`"$pprint_tput" setf 5`
+ PPRINT_COLOR_TXTYLW=`"$pprint_tput" setf 6`
+ PPRINT_COLOR_TXTWHT=`"$pprint_tput" setf 7`
+ PPRINT_COLOR_BLD=`"$pprint_tput" bold`
+ PPRINT_COLOR_BLDBLK=$PPRINT_COLOR_BLD$PPRINT_COLOR_TXTBLK
+ PPRINT_COLOR_BLDBLU=$PPRINT_COLOR_BLD$PPRINT_COLOR_TXTBLU
+ PPRINT_COLOR_BLDGRN=$PPRINT_COLOR_BLD$PPRINT_COLOR_TXTGRN
+ PPRINT_COLOR_BLDCYN=$PPRINT_COLOR_BLD$PPRINT_COLOR_TXTCYN
+ PPRINT_COLOR_BLDRED=$PPRINT_COLOR_BLD$PPRINT_COLOR_TXTRED
+ PPRINT_COLOR_BLDPUR=$PPRINT_COLOR_BLD$PPRINT_COLOR_TXTPUR
+ PPRINT_COLOR_BLDYLW=$PPRINT_COLOR_BLD$PPRINT_COLOR_TXTYLW
+ PPRINT_COLOR_BLDWHT=$PPRINT_COLOR_BLD$PPRINT_COLOR_TXTWHT
+ PPRINT_COLOR_RST=`"$pprint_tput" sgr0`
+
+ # colored yes and no
+ PPRINT_YES_MSG="$PPRINT_COLOR_BLDGRN$PPRINT_YES_MSG$PPRINT_COLOR_RST"
+ PPRINT_NO_MSG="$PPRINT_COLOR_BLDRED$PPRINT_NO_MSG$PPRINT_COLOR_RST"
+
+ # subtitle color
+ PPRINT_COLOR_SUBTITLE=$PPRINT_COLOR_BLDCYN
+ ])
+ ])
+])
+
+# PPRINT_SET_INDENT(indent): sets the current indentation.
+#
+# Use PPRINT_INIT() before using this macro.
+AC_DEFUN([PPRINT_SET_INDENT], [
+ m4_define([PPRINT_CONFIG_INDENT], $1)
+])
+
+# PPRINT_SET_TS(ts): sets the current tab stop.
+#
+# Use PPRINT_INIT() before using this macro.
+AC_DEFUN([PPRINT_SET_TS], [
+ m4_define([PPRINT_CONFIG_TS], $1)
+])
+
+# PPRINT_SUBTITLE(subtitle): pretty prints a subtitle.
+#
+# The subtitle is put as is in a double-quoted shell string so the user
+# needs to escape ".
+#
+# Use PPRINT_INIT() before using this macro.
+AC_DEFUN([PPRINT_SUBTITLE], [
+ AS_ECHO("${PPRINT_COLOR_SUBTITLE}$1$PPRINT_COLOR_RST")
+])
+
+AC_DEFUN([_PPRINT_INDENT], [
+ m4_if(PPRINT_CONFIG_INDENT, 0, [
+ ], [
+ m4_for([pprint_i], 0, m4_eval(PPRINT_CONFIG_INDENT * 2 - 1), 1, [
+ AS_ECHO_N(" ")
+ ])
+ ])
+])
+
+# PPRINT_PROP_STRING(title, value, title_color?): pretty prints a
+# string property.
+#
+# The title is put as is in a double-quoted shell string so the user
+# needs to escape ".
+#
+# The $PPRINT_CONFIG_INDENT variable must be set to the desired indentation
+# level.
+#
+# Use PPRINT_INIT() before using this macro.
+AC_DEFUN([PPRINT_PROP_STRING], [
+ m4_pushdef([pprint_title], [$1])
+ m4_pushdef([pprint_value], [$2])
+
+ m4_if([$#], 3, [
+ m4_pushdef([pprint_title_color], [$3])
+ ], [
+ m4_pushdef([pprint_title_color], [])
+ ])
+
+ m4_pushdef([pprint_title_len], m4_len(pprint_title))
+ m4_pushdef([pprint_spaces_cnt], m4_eval(PPRINT_CONFIG_TS - pprint_title_len - (PPRINT_CONFIG_INDENT * 2) - 1))
+
+ m4_if(m4_eval(pprint_spaces_cnt <= 0), 1, [
+ m4_define([pprint_spaces_cnt], 1)
+ ])
+
+ m4_pushdef([pprint_spaces], [])
+
+ m4_for([pprint_i], 0, m4_eval(pprint_spaces_cnt - 1), 1, [
+ m4_append([pprint_spaces], [ ])
+ ])
+
+ _PPRINT_INDENT
+
+ AS_ECHO_N("pprint_title_color""pprint_title$PPRINT_COLOR_RST:pprint_spaces")
+ AS_ECHO("${PPRINT_COLOR_BLD}pprint_value$PPRINT_COLOR_RST")
+
+ m4_popdef([pprint_spaces])
+ m4_popdef([pprint_spaces_cnt])
+ m4_popdef([pprint_title_len])
+ m4_popdef([pprint_title_color])
+ m4_popdef([pprint_value])
+ m4_popdef([pprint_title])
+])
+
+# PPRINT_PROP_BOOL(title, value, title_color?): pretty prints a boolean
+# property.
+#
+# The title is put as is in a double-quoted shell string so the user
+# needs to escape ".
+#
+# The value is evaluated at shell runtime. Its evaluation must be
+# 0 (false) or 1 (true).
+#
+# Uses the PPRINT_PROP_STRING() with the "yes" or "no" string.
+#
+# Use PPRINT_INIT() before using this macro.
+AC_DEFUN([PPRINT_PROP_BOOL], [
+ m4_pushdef([pprint_title], [$1])
+ m4_pushdef([pprint_value], [$2])
+
+ test pprint_value -eq 0 && pprint_msg="$PPRINT_NO_MSG" || pprint_msg="$PPRINT_YES_MSG"
+
+ m4_if([$#], 3, [
+ PPRINT_PROP_STRING(pprint_title, $pprint_msg, $3)
+ ], [
+ PPRINT_PROP_STRING(pprint_title, $pprint_msg)
+ ])
+
+ m4_popdef([pprint_value])
+ m4_popdef([pprint_title])
+])
+
+# PPRINT_WARN(msg): pretty prints a warning message.
+#
+# The message is put as is in a double-quoted shell string so the user
+# needs to escape ".
+#
+# Use PPRINT_INIT() before using this macro.
+AC_DEFUN([PPRINT_WARN], [
+ m4_pushdef([pprint_msg], [$1])
+
+ _PPRINT_INDENT
+ AS_ECHO("${PPRINT_COLOR_TXTYLW}WARNING:$PPRINT_COLOR_RST ${PPRINT_COLOR_BLDYLW}pprint_msg$PPRINT_COLOR_RST")
+
+ m4_popdef([pprint_msg])
+])
+
+# PPRINT_ERROR(msg): pretty prints an error message and exits.
+#
+# The message is put as is in a double-quoted shell string so the user
+# needs to escape ".
+#
+# Use PPRINT_INIT() before using this macro.
+AC_DEFUN([PPRINT_ERROR], [
+ m4_pushdef([pprint_msg], [$1])
+
+ AC_MSG_ERROR(${PPRINT_COLOR_BLDRED}pprint_msg$PPRINT_COLOR_RST)
+
+ m4_popdef([pprint_msg])
+])
projects / lttng-tools.git / commitdiff
