stdlib: Implement dirname(), basename() and extension() functions.

diff --git a/docs/Goalfile.pod b/docs/Goalfile.pod
index 9731cb1..75ae4fc 100644 (file)
--- a/docs/Goalfile.pod
+++ b/docs/Goalfile.pod
@@ -14,6 +14,30 @@ Goalfile - introduction, tutorial, and reference for writing goal files
 
 =head2 Standard Functions
 
+=head3 basename (path)
+
+For example:
+
+ basename ("dir/file.ext") ⇒ "file.ext"
+
+Returns the filename part of the path.
+
+=head3 dirname (path)
+
+For example:
+
+ dirname ("dir/file.ext") ⇒ "dir"
+
+Returns the directory part of the path.
+
+=head3 extension (filename)
+
+For example:
+
+ extension ("dir/file.ext") ⇒ "ext"
+
+Returns the filename extension.
+
 =head3 sort (list)
 
 For example:

diff --git a/stdlib/prelude.gl b/stdlib/prelude.gl
index 8315b6f..d496d71 100644 (file)
--- a/stdlib/prelude.gl
+++ b/stdlib/prelude.gl
@@ -69,6 +69,22 @@ pure function subst (from, to, text) returning string = @{
 #----------------------------------------------------------------------
 # File functions.
 
+# Base name.
+pure function basename (name) returning string = @{
+    basename %name
+}
+
+# Directory name.
+pure function dirname (name) returning string = @{
+    dirname %name
+}
+
+# File extension.
+pure function extension (name) returning string = @{
+    name=%name
+    echo "${name##*.}"
+}
+
 # Expand a wildcard into a list of filenames.
 #
 # This function is probably not "pure" since it depends on the

diff --git a/tests/10-function-basename.gl b/tests/10-function-basename.gl
new file mode 100644 (file)
index 0000000..4ec2c58
--- /dev/null
+++ b/tests/10-function-basename.gl
@@ -0,0 +1,23 @@
+# Goals test.
+# Copyright (C) 2020 Richard W.M. Jones
+# Copyright (C) 2020 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Test the basename function.
+
+let s = basename ("dir/basename.ext")
+
+goal all = { echo %s }

diff --git a/tests/10-function-basename.sh b/tests/10-function-basename.sh
new file mode 100755 (executable)
index 0000000..5d42783
--- /dev/null
+++ b/tests/10-function-basename.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# Goals test.
+# Copyright (C) 2020 Richard W.M. Jones
+# Copyright (C) 2020 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+set -e
+
+goals -f 10-function-basename.gl > 10-function-basename.out
+test "$(cat 10-function-basename.out)" = "basename.ext"
+rm 10-function-basename.out

diff --git a/tests/10-function-dirname.gl b/tests/10-function-dirname.gl
new file mode 100644 (file)
index 0000000..9fdd22b
--- /dev/null
+++ b/tests/10-function-dirname.gl
@@ -0,0 +1,23 @@
+# Goals test.
+# Copyright (C) 2020 Richard W.M. Jones
+# Copyright (C) 2020 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Test the dirname function.
+
+let s = dirname ("dir/basename.ext")
+
+goal all = { echo %s }

diff --git a/tests/10-function-dirname.sh b/tests/10-function-dirname.sh
new file mode 100755 (executable)
index 0000000..6af6e70
--- /dev/null
+++ b/tests/10-function-dirname.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# Goals test.
+# Copyright (C) 2020 Richard W.M. Jones
+# Copyright (C) 2020 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+set -e
+
+goals -f 10-function-dirname.gl > 10-function-dirname.out
+test "$(cat 10-function-dirname.out)" = "dir"
+rm 10-function-dirname.out

diff --git a/tests/10-function-extension.gl b/tests/10-function-extension.gl
new file mode 100644 (file)
index 0000000..167f85e
--- /dev/null
+++ b/tests/10-function-extension.gl
@@ -0,0 +1,23 @@
+# Goals test.
+# Copyright (C) 2020 Richard W.M. Jones
+# Copyright (C) 2020 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# Test the extension function.
+
+let s = extension ("dir/basename.ext")
+
+goal all = { echo %s }

diff --git a/tests/10-function-extension.sh b/tests/10-function-extension.sh
new file mode 100755 (executable)
index 0000000..66786d3
--- /dev/null
+++ b/tests/10-function-extension.sh
@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+# Goals test.
+# Copyright (C) 2020 Richard W.M. Jones
+# Copyright (C) 2020 Red Hat Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+set -e
+
+goals -f 10-function-extension.gl > 10-function-extension.out
+test "$(cat 10-function-extension.out)" = "ext"
+rm 10-function-extension.out