Version 0.0.1HEADtrunk

16 files changed, 1311 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1fe6a6c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,25 @@
+
+autom4te.cache/
+
+Makefile
+Makefile.in
+config.h
+config.h.in
+config.log
+config.status
+compile
+config.guess
+config.sub
+configure
+install-sh
+missing
+stamp-h1
+aclocal.m4
+depcomp
+
+perl/Makefile.in
+
+src/.deps/
+src/Makefile.in
+
+*~
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..3f3e5e0
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1,3 @@
+
+Douglas Crockford   (www.crockford.com)
+Andrey V.Kosteltsev (radix.pro)
diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..5dac465
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1,4 @@
+2015-09-24  Andrey V.Kosteltsev <kx@radix.pro>
+
+        * all-files: The first release of jsmin with using getopt functionality.
+                     Perl version also present.
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..7844b8d
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,11 @@
+
+
+#
+# In compilation order.
+# ====================
+#
+SUBDIRS = perl src
+
+
+EXTRA_DIST = doc auto-clean .gitignore bootstrap
+
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..f8750b1
--- /dev/null
+++ b/NEWS
@@ -0,0 +1,3 @@
+
+24 Sep 2015 - first release with getopt functionality.
+              Perl version also present.
diff --git a/README b/README
new file mode 100644
index 0000000..0ad8ed8
--- /dev/null
+++ b/README
@@ -0,0 +1,3 @@
+
+jsmin - is a JavaScript, Json minimizator which removes
+comments and unnecessary whitespace from JS, JSON files.
diff --git a/acsite.m4 b/acsite.m4
new file mode 100644
index 0000000..9840042
--- /dev/null
+++ b/acsite.m4
@@ -0,0 +1,56 @@
+
+dnl ============================================================
+dnl Display Configuration Headers
+dnl 
+dnl    configure.in:
+dnl       AC_MSG_CFG_PART(<text>)
+dnl ============================================================
+
+define(AC_MSG_CFG_PART,[dnl
+   AC_MSG_RESULT()
+   AC_MSG_RESULT(${TB}$1:${TN})
+])dnl
+
+
+AC_DEFUN(AC_JSMIN_HEADLINE,[dnl
+  # Use a `Quadrigaph'. @<:@ gives you [ and @:>@ gives you ] :
+  TB=`echo -n -e '\033@<:@1m'`
+  TN=`echo -n -e '\033@<:@0m'`
+  echo ""
+  echo "Configuring ${TB}$1${TN} ($2), Version ${TB}${PACKAGE_VERSION}${TN}"
+  echo "$3"
+])dnl
+
+
+dnl ============================================================
+dnl  Test for build_host `ln -s' .
+dnl  ============================
+dnl
+dnl Usage:
+dnl -----
+dnl    AC_PATH_PROG_LN_S
+dnl    AC_SUBST(LN)
+dnl    AC_SUBST(LN_S)
+dnl
+dnl ============================================================
+AC_DEFUN(AC_PATH_PROG_LN_S,
+[AC_PATH_PROG(LN, ln, no, /usr/local/bin:/usr/bin:/bin:$PATH)
+AC_MSG_CHECKING(whether ln -s works on build host)
+AC_CACHE_VAL(ac_cv_path_prog_LN_S,
+[rm -f conftestdata
+if $LN -s X conftestdata 2>/dev/null
+then
+   rm -f conftestdata
+   ac_cv_path_prog_LN_S="$LN -s"
+else
+   ac_cv_path_prog_LN_S="$LN"
+fi])dnl
+LN_S="$ac_cv_path_prog_LN_S"
+if test "$ac_cv_path_prog_LN_S" = "$LN -s"; then
+   AC_MSG_RESULT(yes)
+else
+   AC_MSG_RESULT(no)
+fi
+AC_SUBST(LN)dnl
+AC_SUBST(LN_S)dnl
+])
diff --git a/auto-clean b/auto-clean
new file mode 100755
index 0000000..84d1b59
--- /dev/null
+++ b/auto-clean
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+CWD=`pwd`
+
+program=`basename $0`
+
+usage() {
+  cat << EOF
+
+Usage: $program [options]
+
+Options:
+  -h,--help                  Display this message.
+
+EOF
+}
+
+if [ -f "${CWD}/Makefile" ] ; then
+  make distclean
+fi
+
+gitignore='.gitignore'
+
+while read ln; do
+  line=`echo "${ln}" | sed 's,^[ \t],,' | sed 's,[ \t]$,,'`
+  if [ "x$line" != "x" -a "${line:0:1}" != "#" ] ; then
+    if `echo "${line}" | grep -q '\*~$'` ; then
+      find "`dirname "${line}"`" -type f -iname '*~' -print0 | while IFS= read -r -d '' file ; do
+        rm -f "$file"
+      done
+    elif `echo "${line}" | grep -q '\*'` ; then
+      find "`dirname "${line}"`" -type f -iname "`basename "${line}"`" -print0 | while IFS= read -r -d '' file ; do
+        rm -f "$file"
+      done
+    else
+      if [ -d "${line}" ] ; then rm -rf "${line}" ; fi
+      if [ -f "${line}" ] ; then rm  -f "${line}" ; fi
+    fi
+  fi
+done < ${CWD}/${gitignore}
diff --git a/bootstrap b/bootstrap
new file mode 100755
index 0000000..22100eb
--- /dev/null
+++ b/bootstrap
@@ -0,0 +1,6 @@
+#!/bin/sh
+
+aclocal
+autoheader
+automake --gnu --add-missing --copy
+autoconf
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..6bdc349
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,165 @@
+
+dnl ============================================================
+dnl  Process this file with autoconf to produce
+dnl  a configure script.
+dnl ============================================================
+
+AC_PREREQ(2.71)dnl           dnl Minimum Autoconf version required.
+
+AC_INIT([jsmin],[0.0.1],
+  [support@radix.pro],[jsmin],[http://radix.pro])
+
+AC_JSMIN_HEADLINE([jsmin], [JSmin], [Copyright (c) 2015-2023 Andrey V.Kosteltsev])
+
+
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl $$                                                        $$
+dnl $$ PART: Init Automake environment                        $$
+dnl $$                                                        $$
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+AC_MSG_CFG_PART(Init Automake environment)
+
+AC_CANONICAL_TARGET
+
+AM_INIT_AUTOMAKE([subdir-objects foreign no-dist-gzip dist-xz tar-pax])
+
+AC_CONFIG_HEADERS([config.h])
+
+AC_PREFIX_DEFAULT(/usr/local)
+
+
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl $$                                                        $$
+dnl $$ PART: Test for Build Tools                             $$
+dnl $$                                                        $$
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+AC_MSG_CFG_PART(Test for Build Tools)
+AC_CHECK_TOOL([GCC], [gcc], [:])
+
+
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl $$                                                        $$
+dnl $$ PART: Test for Auxiliary (my be version sensitive)     $$
+dnl $$       programs                                         $$
+dnl $$                                                        $$
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+AC_MSG_CFG_PART(Test for Auxiliary (my be version sensitive) programs)
+
+dnl ============================================================
+dnl  Locate tools( on build machine! ) .
+dnl                =================
+dnl ============================================================
+AC_PATH_PROG_LN_S
+AC_SUBST(LN)
+AC_SUBST(LN_S)
+
+dnl  Нам нужен исполняемый файл pwd. Встроенный "pwd -P" нас
+dnl  не устраивает( из соображений переносимости ) .
+AC_PATH_PROG(PWD_P, pwd, no)
+if test "$PWD_P" = no; then
+   AC_MSG_ERROR(********   A pwd binary could not be found.)
+fi
+
+test -n "$aux_missing" && AC_MSG_WARN([
+********   These auxiliary programs are missing or too old: $aux_missing
+********   some features will be disabled.
+********   Check the INSTALL file for required versions.])
+
+
+dnl 
+dnl Remove TAR option '-o' for allow long file names in DIST archive.
+dnl Standard tar.m4 from aclocal-1.9 package probvides following
+dnl 'am__tar' command:
+dnl    ${AMTAR} chof - "$$tardir"
+dnl and uses '-chof' options for backward compatibility.
+dnl 
+am__tar='${AMTAR} chf - "$$tardir"'
+AC_SUBST(am__tar)
+
+AC_PATH_PROGS(TAR, tar gtar, no, /usr/local/bin:/usr/bin:/bin:$PATH)
+
+
+
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl $$                                                        $$
+dnl $$ PART: Build Parameters                                 $$
+dnl $$                                                        $$
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+AC_MSG_CFG_PART(Build Parameters)
+
+dnl
+dnl  Check for system header files.
+dnl  =============================
+dnl  /* GetText это проверил. А мы делаем для себя. */
+AC_HEADER_STAT
+AC_CHECK_HEADERS(fcntl.h unistd.h stdlib.h stdio.h errno.h string.h getopt.h)
+
+
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl $$                                                        $$
+dnl $$ PART: OUTPUT Substitution                              $$
+dnl $$                                                        $$
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+dnl ============================================================
+AC_MSG_CFG_PART(OUTPUT)
+
+
+AC_CONFIG_FILES([
+Makefile
+perl/Makefile
+perl/jsmin.pl
+src/Makefile
+])
+AC_OUTPUT
+
+chmod 0755 perl/jsmin.pl
+
+if test -f "Makefile"; then
+    echo ""
+    echo "Now please type:"
+    echo "   \`${TB}make${TN}'           to compile,"
+    echo "   \`${TB}make install${TN}'   to make and install ${TB}jsmin${TN},"
+    echo "   \`${TB}make dist${TN}'      to create distributable tarball, or"
+    echo "   \`${TB}make distclean${TN}' to clean befor configure for another target."
+    echo "Enjoy."
+    echo ""
+fi
diff --git a/doc/README b/doc/README
new file mode 100644
index 0000000..4d34754
--- /dev/null
+++ b/doc/README
@@ -0,0 +1,47 @@
+
+/*
+  This file contant RUSSIAN letters( code-page: utf-8 )
+ ***************************************************************/
+
+/* begin *
+
+   Создание дистрибутива:
+   =====================
+
+      1. Создание (в корне) файлов:
+            ../AUTHORS
+            ../ChangeLog
+            ../NEWS
+            ../README
+         это произвольным образом, на данном этапе
+         необходимо лишь их наличие (для automake).
+
+      2. Создание (в корне) файлов:
++            ../Makefile.am
++            ../acsite.m4
++            ../configure.ac
++            ../perl/Makefile.am
++            ../src/Makefile.am
+         это фактически и есть разработка средств
+         компиляции, инсталляции и, в конечном итоге,
+         создание дистрибутива.
+
+      3. Выполнил script bootstrap:
+            $ cd ..
+            $ ./bootstrap
+
+
+   Изменение версии дистрибутива:
+   =============================
+
+   1. В файле configure.ac меняем определение
+         AC_INIT([jsmin],[0.0.1],
+           [support@radix.pro],[jsmin],[http://radix.pro])
+      на
+         AC_INIT([jsmin],[0.0.2],
+           [support@radix.pro],[jsmin],[http://radix.pro])
+      .
+
+      Затем выполняем скрипт bootstrap .
+
+ * end */
diff --git a/doc/cross-compilation.txt b/doc/cross-compilation.txt
new file mode 100644
index 0000000..4bebf9a
--- /dev/null
+++ b/doc/cross-compilation.txt
@@ -0,0 +1,13 @@
+
+This is an example:
+
+  $ tar xJvf jsmin-0.0.1.tar.xz
+  $ cd jsmin-0.0.1
+
+  $ CC=/opt/toolchain/mipsel-BCM74X-linux-eglibc/1.0.8/bin/mipsel-bcm74x-linux-gnu-gcc \
+    ./configure --prefix=/usr                                                          \
+                --target=mipsel-bcm74x-linux-gnu                                       \
+                --host=mipsel-bcm74x-linux-gnu
+
+  $ make
+  $ make install [DESTDIR=dir]
diff --git a/perl/Makefile.am b/perl/Makefile.am
new file mode 100644
index 0000000..7cd8778
--- /dev/null
+++ b/perl/Makefile.am
@@ -0,0 +1,7 @@
+
+############################################################
+# Don't strip jsmin.pl script when `make install-strip'    #
+############################################################
+INSTALL_SCRIPT = ${INSTALL}
+
+bin_SCRIPTS = jsmin.pl
diff --git a/perl/jsmin.pl.in b/perl/jsmin.pl.in
new file mode 100755
index 0000000..ff648b2
--- /dev/null
+++ b/perl/jsmin.pl.in
@@ -0,0 +1,389 @@
+#!/usr/bin/perl -w
+
+use strict;
+use Getopt::Long qw(:config no_ignore_case bundling);
+use File::Basename;
+use utf8;
+
+my $ifname = '';
+my $ofname = '';
+my $stdio  = '';
+my $last   = '';
+
+my $version = "@VERSION@";
+
+my ( $if, $of );
+
+sub usage
+{
+  my $p = basename( $0 );
+
+  print <<EOF;
+
+Usage: $p [options] [input_file_name]
+Options:
+   --output | -o       - output file name;
+   --version | -v      - print version numver;
+   --help | -h | -?    - print this message;
+   --                  - an option terminator;
+   -                   - use std{io|out} instead of files.
+
+Examples:
+
+  Input file is 'full.json', output file is 'min.json':
+
+    \$ $p -o min.json full.json
+
+  Input file is 'STDIN', output file is 'min.json':
+
+    \$ $p -o min.json -
+
+    Please note that to terminate your input by keyboard you have to use
+    <Ctrl>+d combination;
+
+  Input file is 'full.json', output file is 'STDOUT':
+
+    \$ $p -- full.json
+
+  Use stdin, stdout:
+
+    \$ $p - < full.json > min.json
+
+Enjoj.
+
+EOF
+  exit;
+}
+
+sub version
+{
+  print <<EOF;
+$version
+EOF
+  exit;
+}
+
+
+my $a = '';
+my $b = '';
+my $x = '';
+my $y = '';
+
+my $lookahead = 0;
+
+
+sub get
+{
+  my $c = 0;
+
+  $c = $lookahead;
+  $lookahead = 0;
+
+  if( $c == 0 )
+  {
+    if( ! eof( $if ) )
+    {
+      my $ch = getc( $if );
+      $c = ord( $ch );
+    }
+    else
+    {
+      $c = 0;
+    }
+  }
+  if( $c >= ord(" ") || $c == ord("\n") || $c == 0 )
+  {
+    return $c;
+  }
+  if( $c == ord("\r") )
+  {
+    return ord("\n");
+  }
+  return ord(" ");
+}
+
+sub peek
+{
+  $lookahead = get();
+  return $lookahead;
+}
+
+sub next_cn
+{
+  my $c = get();
+
+  if( $c == ord("/") )
+  {
+    my $char = chr( peek() );
+    if( $char eq "/" )
+    {
+      for(;;) { $c = get(); if( $c <= ord("\n") ) { last; } }
+    }
+    elsif( $char eq "*" )
+    {
+      get();
+      while( $c != ord(" ") )
+      {
+        my $cn = get();
+        if( chr( $cn ) eq "*" )
+        {
+          if( chr( peek() ) eq "/" ) { get(); $c = ord(" "); }
+        }
+        elsif( $cn == 0 )
+        {
+          print STDERR "Unterminated comment.\n"; exit 1;
+        }
+      }
+    }
+  }
+  $y = $x;
+  $x = chr( $c );
+
+  return $c;
+}
+
+sub action
+{
+  my $d = $_[0];
+
+  if( $d == 1 )
+  {
+    print $of $a;
+    if(
+        ( $y eq "\n" || $y eq " " ) &&
+        ( $a eq "+" || $a eq "-" || $a eq "*" || $a eq "/" ) &&
+        ( $b eq "+" || $b eq "-" || $b eq "*" || $b eq "/" )
+      )
+    {
+      print $of $y;
+    }
+    $d = 2;
+  }
+
+  if( $d == 2 )
+  {
+    $a = $b;
+    if( $a eq "\'" || $a eq "\"" || $a eq "`" )
+    {
+      for(;;)
+      {
+        my $c;
+
+        print $of $a;
+        $c = get(); $a = chr( $c );
+        if( $a eq $b ) { last; }
+        if( $a eq "\\" )
+        {
+          print $of $a;
+          $c = get(); $a = chr( $c );
+        }
+        if( $c == 0 )
+        {
+          print STDERR "Unterminated string literal.\n"; exit 1;
+        }
+      }
+    }
+    $d = 3;
+  }
+
+  if( $d == 3 )
+  {
+    $b = chr( next_cn() );
+    if( $b eq "/" &&
+        ( $a eq "(" || $a eq "," || $a eq "=" || $a eq ":" ||
+          $a eq "[" || $a eq "!" || $a eq "&" || $a eq "|" ||
+          $a eq "?" || $a eq "+" || $a eq "-" || $a eq "~" ||
+          $a eq "*" || $a eq "/" || $a eq "{" || $a eq "\n"
+        )
+      )
+    {
+      print $of $a;
+      if( $a eq "/" || $a eq "*" ) { print $of " "; }
+      print $of $b;
+      for(;;)
+      {
+        my $c;
+
+        $c = get(); $a = chr( $c );
+        if( $a eq "[" )
+        {
+          for(;;)
+          {
+            print $of $a;
+            $c = get(); $a = chr( $c );
+            if( $a eq "]" )
+            {
+              last;
+            }
+            if( $a eq "\\" )
+            {
+              print $of $a;
+              $c = get(); $a = chr( $c );
+            }
+            if( $c == 0 )
+            {
+              print STDERR "Unterminated regular expression literal.\n"; exit 1;
+            }
+          }
+        }
+        elsif( $a eq "/" )
+        {
+          my $ch = chr( peek() );
+          if( $ch eq "/" || $ch eq "*" )
+          {
+            print STDERR "Unterminated regular expression literal.\n"; exit 1;
+          }
+          last;
+        }
+        elsif( $a eq "\\" )
+        {
+          print $of $a;
+          $c = get(); $a = chr( $c );
+        }
+        elsif( $c == 0 )
+        {
+          print STDERR "Unterminated regular expression literal.\n"; exit 1;
+        }
+        print $of $a;
+      }
+      $b = chr( next_cn() );
+    }
+  }
+}
+
+
+sub isalnum
+{
+  my $ch = $_[0];
+
+  if( ($ch ge "a" && $ch le "z") || ($ch ge "0" && $ch le "9") ||
+      ($ch ge "A" && $ch le "Z") ||  $ch eq "_" || $ch eq "\$" ||
+      $ch eq "\\" || $ch gt "~"
+    ) { return 1; } else { return 0; }
+}
+
+
+sub jsmin
+{
+  if( peek() == 0xEF ) { get(); get(); get(); }
+  $a = "\n";
+  action( 3 );
+  while( $a ne "" && $a ne "\0" )
+  {
+    if( $a eq " " )
+    {
+      action( isalnum( $b ) ? 1 : 2 );
+    }
+    elsif( $a eq "\n" )
+    {
+      if( $b eq "{" || $b eq "[" || $b eq "(" || $b eq "+" ||
+          $b eq "-" || $b eq "!" || $b eq "~"
+        )
+      {
+        action( 1 );
+      }
+      elsif( $b eq " " )
+      {
+        action( 3 );
+      }
+      else
+      {
+        action( isalnum( $b ) ? 1 : 2 );
+      }
+    }
+    else
+    {
+      if( $b eq " " )
+      {
+        action( isalnum( $a ) ? 1 : 3 );
+      }
+      elsif( $b eq "\n" )
+      {
+        if( $a eq "}" || $a eq "]" || $a eq ")" || $a eq "+" ||
+            $a eq "-" || $a eq "\"" || $a eq "\'" || $a eq "`"
+          )
+        {
+          action( 1 );
+        }
+        else
+        {
+          action( isalnum( $a ) ? 1 : 3 );
+        }
+      }
+      else
+      {
+        action( 1 );
+      }
+    }
+  }
+  #lats carriage return
+  print $of "\n";
+}
+
+
+local $SIG{__WARN__} = sub {
+  my $message = shift;
+  print STDERR "ERROR: " . $message;
+  usage();
+};
+
+if( ! GetOptions( 'o=s'       => \$ofname,
+                  'output=s'  => \$ofname,
+                  ''          => \$stdio,
+                  'help|h|?'  => sub { usage() },
+                  'version|v' => sub { version() }
+                )
+  )
+{
+  usage();
+}
+
+foreach( @ARGV )
+{
+  $last = $_;
+
+  if( $#ARGV )
+  {
+    usage();
+  }
+
+# NOTE: The '--' is an option terminator!
+#       So ./script -- - returns last equal to '-'.
+#
+# The $last argument is a ifname by default;
+#
+}
+
+
+if( $ifname eq '' && $ofname eq '' && ! $stdio )
+{
+  usage();
+}
+
+if( $ofname ne '' && $stdio && $last ne '' )
+{
+ # like that:
+ #   ./script -o min.json full.json -
+ #   ./script -o min.json - full.json
+ #
+  print "ERROR: Input file defined twice: as 'stdin' and as a orfinary file '$last'\n";
+  usage();
+}
+else
+{
+  $ifname = $last; $last = '';
+}
+
+if( $ofname eq '' ) { $ofname = '-'; }
+if( $ifname eq '' ) { $ifname = '-'; }
+if( $ifname eq '-' ) { $if = *STDIN; }  else { open( $if, "< $ifname" ); }
+if( $ofname eq '-' ) { $of = *STDOUT; } else { open( $of, "> $ofname" ); }
+
+
+jsmin();
+
+
+close $if;
+close $of;
+
+exit 0;
diff --git a/src/Makefile.am b/src/Makefile.am
new file mode 100644
index 0000000..f08fea3
--- /dev/null
+++ b/src/Makefile.am
@@ -0,0 +1,6 @@
+
+bin_PROGRAMS  = jsmin
+
+jsmin_SOURCES = main.c
+
+jsmin_CFLAGS  = -Wall -funsigned-char -I$(top_srcdir)
diff --git a/src/main.c b/src/main.c
new file mode 100644
index 0000000..a26fff8
--- /dev/null
+++ b/src/main.c
@@ -0,0 +1,533 @@
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_SYS_STAT_H
+#include <sys/stat.h>
+#endif
+
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_STDIO_H
+#include <stdio.h>
+#endif
+#ifdef HAVE_GETOPT_H
+#include <getopt.h>
+#endif
+
+#else
+/**************************************************************
+  For building outside from source package as a single C file:
+
+    $ gcc -o jsmin main.c
+ */
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <sys/stat.h>
+
+#include <errno.h>
+#include <string.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <getopt.h>
+
+#endif
+
+static char *ifname   = NULL;
+static char *ofname   = NULL;
+
+FILE        *ifile;
+FILE        *ofile;
+FILE        *tmp;
+
+static char *progname = NULL;
+
+static int   opt_usage;
+static int   opt_version;
+
+#define DIR_SEPARATOR '/'
+
+static void usage()
+{
+  printf( "\n" );
+  printf( "Usage: %s [options] [input_file_name]\n", progname );
+  printf( "Options:\n" );
+  printf( "   --output | -o       - output file name;\n" );
+  printf( "   --version | -v      - print version numver;\n" );
+  printf( "   --help | -h | -?    - print this message;\n" );
+  printf( "   --                  - an option terminator;\n" );
+  printf( "   -                   - use std{io|out} instead of files.\n\n" );
+  printf( "Examples:\n\n" );
+  printf( "  Input file is 'full.json', output file is 'min.json':\n\n" );
+  printf( "    $ %s -o min.json full.json\n\n", progname );
+  printf( "  Input file is 'STDIN', output file is 'min.json':\n\n" );
+  printf( "    $ %s -o min.json -\n\n", progname );
+  printf( "    Please note that to terminate your input by keyboard you have to use\n" );
+  printf( "    <Ctrl>+d combination;\n\n" );
+  printf( "  Input file is 'full.json', output file is 'STDOUT':\n\n" );
+  printf( "    $ %s -- full.json\n\n", progname );
+  printf( "  Use stdin, stdout:\n\n" );
+  printf( "    $ %s - < full.json > min.json\n\n", progname );
+  printf( "Enjoj.\n\n" );
+
+  exit( 1 );
+}
+
+static void version()
+{
+#ifdef HAVE_CONFIG_H
+  printf( "%s\n", (char *)VERSION );
+#else
+  printf( "0.0.1\n" );
+#endif
+
+  exit( 1 );
+}
+
+static void
+error( char *s )
+{
+  fprintf( stderr, "ERROR: %s: ", progname );
+  fprintf( stderr, "%s\n", s );
+  exit( 1 );
+}
+
+static int
+is_alpha_or_num( int c )
+{
+  return( (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9') ||
+          (c >= 'A' && c <= 'Z') || c == '_' || c == '$' || c == '\\' || c > 126 );
+}
+
+static int  a;
+static int  b;
+static int  lookahead = EOF;
+static int  x = EOF;
+static int  y = EOF;
+
+/*
+   get - return the next character from stdin. Watch out for lookahead. If
+         the character is a control character, translate it to a space or
+         linefeed.
+ */
+static int
+get()
+{
+  int c = lookahead;
+  lookahead = EOF;
+  if( c == EOF )
+  {
+    c = getc( ifile );
+  }
+  if( c >= ' ' || c == '\n' || c == EOF )
+  {
+    return c;
+  }
+  if( c == '\r' )
+  {
+    return '\n';
+  }
+  return ' ';
+}
+
+
+/*
+   peek - get the next character without getting it.
+ */
+static int
+peek()
+{
+  lookahead = get();
+  return lookahead;
+}
+
+
+/*
+   next - get the next character, excluding comments. peek() is used to see
+          if a '/' is followed by a '/' or '*'.
+ */
+static int
+next()
+{
+  int c = get();
+  if ( c == '/' )
+  {
+    switch( peek() )
+    {
+      case '/':
+        for( ;; )
+        {
+          c = get();
+          if( c <= '\n' )
+          {
+            break;
+          }
+        }
+        break;
+      case '*':
+        get();
+        while( c != ' ' )
+        {
+          switch( get() )
+          {
+            case '*':
+              if( peek() == '/' )
+              {
+                get();
+                c = ' ';
+              }
+              break;
+            case EOF:
+              error( "Unterminated comment" );
+          }
+        }
+        break;
+    }
+  }
+  y = x;
+  x = c;
+  return c;
+}
+
+
+/*
+   action - do something! What you do is determined by the argument:
+            1   Output A. Copy B to A. Get the next B.
+            2   Copy B to A. Get the next B. (Delete A).
+            3   Get the next B. (Delete B).
+   action treats a string as a single character. Wow!
+   action recognizes a regular expression if it is preceded by ( or , or =.
+ */
+static void
+action( int d )
+{
+  switch( d )
+  {
+    case 1:
+      putc( a, ofile );
+      if( (y == '\n' || y == ' ') &&
+          (a == '+' || a == '-' || a == '*' || a == '/') &&
+          (b == '+' || b == '-' || b == '*' || b == '/')    )
+      {
+        putc( y, ofile );
+      }
+    case 2:
+      a = b;
+      if( a == '\'' || a == '"' || a == '`' )
+      {
+        for( ;; )
+        {
+          putc( a, ofile );
+          a = get();
+          if( a == b )
+          {
+            break;
+          }
+          if( a == '\\' )
+          {
+            putc( a, ofile );
+            a = get();
+          }
+          if( a == EOF )
+          {
+            error( "Unterminated string literal" );
+          }
+        }
+      }
+    case 3:
+      b = next();
+      if( b == '/' &&
+          ( a == '(' || a == ',' || a == '=' || a == ':' ||
+            a == '[' || a == '!' || a == '&' || a == '|' ||
+            a == '?' || a == '+' || a == '-' || a == '~' ||
+            a == '*' || a == '/' || a == '{' || a == '\n' ) )
+      {
+        putc( a, ofile );
+        if( a == '/' || a == '*' )
+        {
+          putc( ' ', ofile );
+        }
+        putc( b, ofile );
+        for( ;; )
+        {
+          a = get();
+          if( a == '[' )
+          {
+            for( ;; )
+            {
+              putc( a, ofile );
+              a = get();
+              if( a == ']' )
+              {
+                break;
+              }
+              if( a == '\\' )
+              {
+                putc( a, ofile );
+                a = get();
+              }
+              if( a == EOF )
+              {
+                error( "Unterminated set in Regular Expression literal" );
+              }
+            }
+          }
+          else if( a == '/' )
+          {
+            switch( peek() )
+            {
+              case '/':
+              case '*':
+                error( "Unterminated set in Regular Expression literal" );
+            }
+            break;
+          }
+          else if( a =='\\' )
+          {
+            putc( a, ofile );
+            a = get();
+          }
+          if( a == EOF )
+          {
+            error( "Unterminated Regular Expression literal" );
+          }
+          putc( a, ofile );
+        }
+      b = next();
+    }
+  }
+}
+
+
+/*
+   jsmin - Copy the input to the output, deleting the characters which are
+           insignificant to JavaScript. Comments will be removed. Tabs will be
+           replaced with spaces. Carriage returns will be replaced with linefeeds.
+           Most spaces and linefeeds will be removed.
+*/
+
+static void
+jsmin()
+{
+  if( peek() == 0xEF ) { get(); get(); get(); }
+  a = '\n';
+  action( 3 );
+
+  while( a != EOF )
+  {
+    switch( a )
+    {
+      case ' ':
+        action(is_alpha_or_num(b) ? 1 : 2);
+        break;
+      case '\n':
+        switch( b )
+        {
+          case '{': case '[': case '(':
+          case '+': case '-': case '!':
+          case '~':
+            action( 1 );
+            break;
+          case ' ':
+            action( 3 );
+            break;
+          default:
+            action( is_alpha_or_num(b) ? 1 : 2 );
+        }
+        break;
+      default:
+        switch( b )
+        {
+          case ' ':
+            action( is_alpha_or_num(a) ? 1 : 3 );
+            break;
+          case '\n':
+            switch( a )
+            {
+              case '}':  case ']': case ')':
+              case '+':  case '-': case '"':
+              case '\'': case '`':
+                action( 1 );
+                break;
+              default:
+                action( is_alpha_or_num(a) ? 1 : 3 );
+            }
+            break;
+          default:
+            action( 1 );
+            break;
+        }
+    }
+  }
+  /* lats carriage return */
+  putc( '\n', ofile );
+}
+
+int is_file_exist( const char *filename )
+{
+  struct stat st;
+  int result = stat( filename, &st );
+  return result == 0;
+}
+
+static void
+getargs( argc, argv )
+  int   argc;
+  char *argv[];
+{
+  int option       = 0;
+  int option_index = 0;
+  static struct option long_options[] =
+  {
+    { "output", required_argument, 0, 'o' },
+    { "help",         no_argument, 0, 'h' },
+    { "version",      no_argument, 0, 'v' },
+    { 0,                        0, 0,  0  },
+  };
+
+  opterr = 0;
+
+  while( (option = getopt_long( argc, argv, "o:hv", long_options, &option_index )) != -1 )
+  {
+    switch( option )
+    {
+      case 'o':
+        ofname = optarg;
+        break;
+      case 'h':
+        opt_usage   = 1;
+        break;
+      case 'v':
+        opt_version = 1;
+        break;
+      case '?':
+        {
+          if( optopt == 'o' )
+            fprintf( stderr,"\nERROR: %s: option '-%c' requires an argument\n\n", progname, optopt );
+        }
+      default:
+        usage();
+        break;
+    }
+  }
+
+  if( optind < argc )
+  {
+    ifname = argv[optind++];
+    if( optind < argc ) usage();
+  }
+
+  if( opt_usage )   usage();
+  if( opt_version ) version();
+  if( opt_usage || ( ! ifname && ! ofname ) ) usage();
+
+  if( ! ofname ) ofname = "-" ;
+  if( ! ifname ) ifname = "-" ;
+}
+
+int main( int argc, char *argv[] )
+{
+  int use_stdin = 0, use_stdout = 0, use_tmpfile = 0;
+
+  progname = rindex( argv[0], DIR_SEPARATOR ) + 1;
+  getargs( argc, argv );
+
+
+  if( ! strncmp( ifname, "-", 1 ) )
+  {
+    ifile = stdin;
+    use_stdin = 1;
+  }
+  else
+  {
+    ifile = fopen( ifname, "r" );
+    if( ifile == NULL )
+    {
+      fprintf( stderr, "ERROR: Can't open '%s' file\n", ifname );
+      exit( 1 );
+    }
+  }
+
+  if( ! strncmp( ofname, "-", 1 ) )
+  {
+    ofile = stdout;
+    use_stdout = 1;
+  }
+  else
+  {
+    if( is_file_exist( ofname ) )
+    {
+      /*
+        use temporary file to presave file content
+        in case when input and output the same file.
+       */
+      ofile = tmpfile();
+      if( ofile == NULL )
+      {
+        fprintf( stderr, "ERROR: Can't open TEMPORARY file\n" );
+        exit( 1 );
+      }
+      use_tmpfile = 1;
+    }
+    else
+    {
+      ofile = fopen( ofname, "w+" );
+      if( ofile == NULL )
+      {
+        fprintf( stderr, "ERROR: Can't open '%s' file\n", ofname );
+        exit( 1 );
+      }
+    }
+  }
+
+
+  jsmin();
+
+
+  if( use_tmpfile )
+  {
+    tmp = fopen( ofname, "w+" );
+    if( tmp == NULL )
+    {
+      fprintf( stderr, "ERROR: Can't open '%s' file\n", ofname );
+      exit( 1 );
+    }
+    if( !fseek( ofile, 0, SEEK_SET ) )
+    {
+      int c;
+      while( (c = getc( ofile )) != EOF )
+      {
+        putc( c, tmp );
+      }
+      fclose( tmp );
+    }
+    else
+    {
+      fprintf( stderr, "ERROR: Can't seek to beginning of the '%s' file\n", ofname );
+      fclose( tmp );
+      exit( 1 );
+    }
+  }
+
+  if( ! use_stdin )  { fclose( ifile ); ifile = NULL; }
+  if( ! use_stdout ) { fclose( ofile ); ofile = NULL; }
+  exit( 0 );
+}