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GNU GENERAL PUBLIC LICENSE
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Notwithstanding any other provision of this License, you have
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THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
{one line to give the program's name and a brief idea of what it does.}
Copyright (C) {year} {name of author}
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 3 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, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
{project} Copyright (C) {year} {fullname}
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

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#!/bin/bash
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
cd "$DIR"
meson --prefix=/usr ./ build
sudo ninja -v install -C build
if [ $? -eq 0 ]; then
echo "== LIB BUILD SUCCESS =="
valac -v --pkg gee-0.8 --pkg pluie-echo-0.2 --pkg pluie-yaml-0.3 main.vala
if [ $? -eq 0 ]; then
echo "== BUILD SUCCESS =="
else
echo "== BUILD FAILED =="
fi
else
echo "== LIB BUILD FAILED =="
fi

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build/.gitkeep Normal file
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# .gitkeep

9
install.vala.in Normal file
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namespace Pluie
{
namespace Yaml
{
protected const string INSTALL_PATH = "@INSTALL_PATH@";
protected const string DATA_PATH = "@DATA_PATH@";
public const string VERSION = "@VERSION@";
}
}

34
main.vala Normal file
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using GLib;
using Gee;
using Pluie;
int main (string[] args)
{
Echo.init(true);
var path = "resources/test.yml";
var done = false;
of.title ("Pluie Yaml Parser", Pluie.Yaml.VERSION, "a-sansara");
of.action ("Reading file", path);
of.echo ();
var reader = new Io.Reader (path);
while (reader.readable) {
of.echo ("%s %s".printf (
of.c (ECHO.DATE ).s ("%03d |".printf (reader.line)),
of.c (ECHO.OPTION_SEP).s (reader.read ()))
);
}
of.echo ("EOF");
of.state (true);
of.action ("Parsing file", path);
var processor = new Yaml.Processor (path);
done = processor.done;
of.state (done);
of.echo ();
return (int) done;
}

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project('libpluie-yaml', 'vala', 'c')
cc = meson.get_compiler('c')
dep_glib = dependency('glib-2.0')
dep_gobject = dependency('gobject-2.0')
dep_gio = dependency('gio-2.0')
dep_gee = dependency('gee-0.8')
dep_echo = dependency('pluie-echo-0.2')
dep_m = cc.find_library('m', required : false)
dep_yaml = cc.find_library('yaml', required : true)
#~ add_global_link_arguments('-lyaml', language : 'c')
version = '0.3'
bindir = join_paths(get_option('prefix'), get_option('bindir'))
datadir = join_paths(get_option('prefix'), get_option('datadir'), 'pluie')
libdir = join_paths(get_option('prefix'), get_option('libdir'), 'pkgconfig')
incdir = join_paths(get_option('prefix'), get_option('includedir'), 'pluie')
conf = configuration_data()
conf.set('VERSION' , version)
conf.set('INSTALL_PATH', bindir)
conf.set('DATA_PATH' , datadir)
configure_file(
input: 'install.vala.in',
output: 'install.vala',
configuration: conf
)
sources = [
'build/install.vala',
'src/vala/Pluie/Io.Reader.vala',
'src/vala/Pluie/Io.StreamLineMark.vala',
'src/vala/Pluie/Yaml.global.vala',
'src/vala/Pluie/Yaml.Event.vala',
'src/vala/Pluie/Yaml.Processor.vala',
'src/vala/Pluie/Yaml.BaseNode.vala',
'src/vala/Pluie/Yaml.Node.vala',
'src/vala/Pluie/Yaml.NodeCollection.vala',
'src/vala/Pluie/Yaml.NodeMap.vala',
'src/vala/Pluie/Yaml.NodeRoot.vala',
'src/vala/Pluie/Yaml.NodeScalar.vala',
'src/vala/Pluie/Yaml.NodeSequence.vala',
'src/vala/Pluie/Yaml.NodeSinglePair.vala',
'src/c/yaml.c'
]
install_data('resources/test.yml', install_dir : datadir)
libpluie_yaml = library(
'pluie-yaml-' + version,
sources,
vala_header : 'pluie_yaml.h',
vala_vapi : 'pluie-yaml-' +version+'.vapi',
dependencies : [dep_glib, dep_gobject, dep_gio, dep_gee, dep_echo, dep_m, dep_yaml],
install : true,
install_dir : [get_option('libdir'), incdir, true]
)
pkgconfig = import('pkgconfig')
pkgconfig.generate(
libraries : libpluie_yaml,
requires : 'glib-2.0 gobject-2.0 gio-2.0 gee-0.8 pluie-echo-0.2',
variables : 'datarootdir='+join_paths('${prefix}', get_option('datadir'))+'\ndatadir='+join_paths('${datarootdir}', 'pluie'),
version : version,
name : 'libpluie-yaml',
filebase : 'pluie-yaml-' + version,
subdirs : 'pluie',
description : 'The pluie yaml library'
)

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resources/test.yml Normal file
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%YAML 1.2
--- !<tag:clarkevans.com,2002:invoice>
invoice: 34843
date : 2001-01-23
bill-to: &id001
given : Chris
family : Dumars
address:
lines: |
458 Walkman Dr.
"Suite" #292
city : Royal Oak
state : MI
postal : 48046
ship-to: *id001
product:
- sku : BL394D
quantity : 4
description : Basketball
price : 450.00
- sku : BL4438H
quantity : 1
description : Super Hoop
price : 2392.00
tax : 251.42
total: 4443.52
comments:
Late afternoon is best.
Backup contact is Nancy
Billsmer @ 338-4338.

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#include <stdio.h>
#include <yaml.h>
/* return a new string with every instance of ch replaced by repl */
char *replace_char(const char *s, char ch, const char *repl) {
int count = 0;
const char *t;
for(t=s; *t; t++)count += (*t == ch);
size_t rlen = strlen(repl);
char *res = malloc(strlen(s) + (rlen-1)*count + 1);
char *ptr = res;
for(t=s; *t; t++) {
if(*t == ch) {
memcpy(ptr, repl, rlen);
ptr += rlen;
} else {
*ptr++ = *t;
}
}
*ptr = 0;
return res;
}
char *escape_string(const char *s) {
char *t;
t = replace_char(s, '\"', "\\\"");
t = replace_char(t, '\n', "\\n");
return t;
}
void yaml_parse_file(const char *srcPath, const char *destPath)
{
FILE *rh = fopen(srcPath, "r");
FILE *wh = fopen(destPath, "w");
yaml_parser_t parser;
yaml_token_t token;
if(!yaml_parser_initialize(&parser))
fputs("Failed to initialize parser!\n", stderr);
if(rh == NULL || wh == NULL)
fputs("Failed to open file!\n", stderr);
yaml_parser_set_input_file(&parser, rh);
int stop = 0;
do {
yaml_parser_scan(&parser, &token);
long int line = parser.mark.line + 1;
switch(token.type)
{
case YAML_SCALAR_TOKEN :
fprintf(wh, "%lu, %d, %d, \"%s\"\n", line, token.type, token.data.scalar.style, escape_string((char *)token.data.scalar.value));
break;
case YAML_ALIAS_TOKEN :
fprintf(wh, "%lu, %d, \"%s\"\n", line, token.type, token.data.alias.value);
break;
case YAML_ANCHOR_TOKEN :
fprintf(wh, "%lu, %d, \"%s\"\n", line, token.type, token.data.anchor.value);
break;
case YAML_DOCUMENT_START_TOKEN :
fprintf(wh, "%lu, %d, %d\n", line, token.type, parser.encoding);
break;
case YAML_TAG_TOKEN :
fprintf(wh, "%lu, %d, \"%s\", \"%s\"\n", line, token.type, token.data.tag.handle, token.data.tag.suffix);
break;
case YAML_VERSION_DIRECTIVE_TOKEN :
fprintf(wh, "%lu, %d, %d, %d\n", line, token.type, token.data.version_directive.major, token.data.version_directive.minor);
break;
case YAML_NO_TOKEN :
fprintf(wh, "%lu, %d, \"%s\"\n", line, token.type, escape_string((char *)parser.problem));
stop = 1;
break;
/* Others */
default:
fprintf(wh, "%lu, %d\n", line, token.type);
}
if(token.type != YAML_STREAM_END_TOKEN)
yaml_token_delete(&token);
if (stop == 1) break;
}
while(token.type != YAML_STREAM_END_TOKEN);
yaml_token_delete(&token);
yaml_parser_delete(&parser);
fclose(rh);
fclose(wh);
}

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src/vala/Pluie/Io.Reader.vala Normal file
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using GLib;
using Gee;
using Pluie;
/**
* a class to read file line by line with convenient methods to rewind to specific lines
* using {@link Io.StreamLineMark}
*/
public class Pluie.Io.Reader
{
/**
* current file path
*/
public string path { get; internal set; default = null; }
/**
* indicates the current line number
*/
public int line { get; internal set; default = 0; }
/**
* indicates if current stream is readable
*/
public bool readable { get; internal set; default = false; }
/**
* stream used to read the file
*/
DataInputStream stream;
/**
* construct a reader
* by adding {@link Io.StreamLineMark}
* @param path the path to load
*/
public Reader (string path)
{
this.load (path);
}
/**
* load a yaml file by specifiyed path
* @param path the path to load
* @return operation succeed
*/
public bool load (string path)
{
Dbg.in (Log.METHOD, "path:'%s'".printf (path), Log.LINE, Log.FILE);
if (path == this.path && this.line > 0) {
if (this.rewind (new Io.StreamLineMark (0, 0))) {
return this.readable;
}
}
this.readable = false;
this.path = path;
this.line = 0;
var file = File.new_for_path (path);
if (!file.query_exists ()) {
of.error ("File '%s' doesn't exist.".printf (file.get_path ()));
}
else {
try {
this.stream = new DataInputStream (file.read ());
this.readable = true;
this.line++;
}
catch (Error e) {
of.error (e.message);
}
}
Dbg.out (Log.METHOD, "done:%d".printf ((int)this.readable), Log.LINE, Log.FILE);
return this.readable;
}
/**
* read current stream by line
* @param mark a mark used to operate possible future rewind
* @return current readed line
*/
public string? read (out Io.StreamLineMark? mark = null)
{
mark = null;
string? data = null;
if (this.readable) {
try {
// save pos before consume line
mark = new Io.StreamLineMark (this.stream.tell (), this.line);
data = this.stream.read_line (null);
if ((this.readable = data != null)) {
this.line++;
}
}
catch (IOError e) {
this.readable = false;
of.error (e.message);
}
}
return data;
}
/**
* rewind current reading to specifiyed mark
* @return operation succeed
*/
public bool rewind (Io.StreamLineMark mark)
{
this.readable = false;
try {
this.line = mark.line;
this.readable = this.stream.seek (mark.pos, SeekType.SET);
}
catch (Error e) {
of.error (e.message);
}
return this.readable;
}
}

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src/vala/Pluie/Io.StreamLineMark.vala Normal file
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/**
* a class representing a stream mark recording a line and it's position in the stream
* to permit future rewind @see Io.Reader
*/
public class Pluie.Io.StreamLineMark
{
/**
* current line
*/
public int line { get; internal set; default = 0; }
/**
* current position (stream.tell value)
*/
public int64 pos { get; internal set; default = 0; }
/**
* construct a StreamLineMark with given pos & line
*/
public StreamLineMark (int64 pos, int line)
{
this.pos = pos;
this.line = line;
}
}

189
src/vala/Pluie/Yaml.BaseNode.vala Normal file
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using GLib;
using Gee;
using Pluie;
/**
* parent class representing a Yaml Node whenether was his type
*/
public class Pluie.Yaml.BaseNode : Object, Pluie.Yaml.Node
{
/**
* universal unique identifier
*/
public string uuid { get; internal set; }
/**
* find mode related to Yaml.FIND_MODE, default is Yaml.FIND_MODE.SQUARE_BRACKETS
*/
public static Yaml.FIND_MODE mode { get; set; default = Yaml.FIND_MODE.SQUARE_BRACKETS; }
/**
* node type related to Yaml.NODE_TYPE
*/
public Yaml.NODE_TYPE node_type { get; internal set; }
/**
* current representation indent
*/
public int indent { get; internal set; }
/**
* parent node
*/
public Yaml.Node? parent { get; internal set; }
/**
* current node data for Yaml.NodeScalar node
*/
public string? data { get; internal set; default = null; }
/**
* current node name (key)
*/
public string? name { get; internal set; default = null; }
/**
* default Yaml.Node constructor
* @param parent the parent node
* @param indent the current indentation in node representation string
* @param type the NODE_TYPE of Yaml.Node to create
*/
public BaseNode (Yaml.Node? parent = null, int indent = 0, NODE_TYPE type = NODE_TYPE.UNDEFINED)
{
this.standard (parent, indent, type);
}
/**
* constructor for root Yaml.Node
*/
public BaseNode.root () {
this.standard (null, -4, NODE_TYPE.ROOT);
this.name = "PluieYamlRootNode";
}
/**
* constructor for standard Yaml.Node
* @param parent the parent node
* @param indent the current indentation in node representation string
* @param type the NODE_TYPE of Yaml.Node to create
*/
internal BaseNode.standard (Yaml.Node? parent = null, int indent = 0, NODE_TYPE type = NODE_TYPE.UNDEFINED)
{
this.parent = parent;
this.node_type = type;
this.indent = indent;
this.uuid = Yaml.uuid ();
}
/**
* stuff on changing parent node
* @param child the childto add
*/
protected virtual bool on_change_parent ()
{
bool done = true;
if (this.parent != null) {
done = this.parent.remove_child (this);
}
return done;
}
/**
* add a child
* @param child the childto add
*/
public virtual bool add (Yaml.Node child)
{
child.parent = this;
return false;
}
/**
* remove a child
* @param child the child to remove
*/
protected virtual bool remove_child (Yaml.Node child)
{
return false;
}
/**
* give the next sibling node
*/
public virtual Yaml.Node? next_sibling ()
{
Yaml.Node? sibling = null;
if (this.parent != null) {
sibling = (this.parent as Yaml.NodeCollection).child_next_sibling (this);
}
return sibling;
}
/**
* give the previous sibling node
*/
public virtual Yaml.Node? previous_sibling ()
{
Yaml.Node? sibling = null;
if (this.parent != null) {
sibling = (this.parent as Yaml.NodeCollection).child_previous_sibling (this);
}
return sibling;
}
/**
* give the root parent node
*/
public virtual Yaml.Node? get_root_node ()
{
Yaml.Node? parent = this.parent;
if (parent != null) {
while(parent.parent != null) {
parent = parent.parent;
}
}
return parent;
}
/**
* check if node has child nodes
*/
public virtual bool has_child_nodes ()
{
return this.node_type.is_collection () && (this as Yaml.NodeCollection).get_size () > 0;
}
/**
* check if current node contains the specifiyed child node
* @param child
*/
public virtual bool contains (Yaml.Node child)
{
bool has = false;
if (this.node_type.is_collection ()) {
has = (this as Yaml.NodeCollection).contains (child);
}
return has;
}
/**
* get a presentation string of current Yaml.Node
*/
public string to_string (bool withIndent = true)
{
return "%s%s%s%s%s%s%s%s".printf (
this.node_type.is_root () ? "" : of.s_indent ((int8) (withIndent ? this.indent : 0)),
of.c (ECHO.OPTION).s ("<"),
of.c (ECHO.OPTION_SEP).s (this.node_type.infos ()),
this.name != null ? " %s".printf (this.name)
: (this.node_type.is_scallar () ? " %s".printf (this.data) : ""),
"[%x]".printf (this.ref_count),
this.parent == null ? "" : this.parent.name+"|"+this.indent.to_string(),
//~ " (%d) ".printf (this.indent),
of.c (ECHO.OPTION).s (">"),
of.c (ECHO.DATE).s (" %s".printf(this.uuid))
);
}
}

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src/vala/Pluie/Yaml.Event.vala Normal file
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using GLib;
using Gee;
using Pluie;
/**
* a class to read file line by line with convenient methods to rewind to specific lines
* using {@link Io.StreamLineMark}
*/
public class Pluie.Yaml.Event
{
/**
* event type
*/
public Yaml.EVT evtype { get; internal set; default = 0; }
/**
* indicates the current line number
*/
public int line { get; internal set; default = 0; }
/**
* indicates the current event style
*/
public int? style { get; internal set; default = null; }
/**
* event data
*/
public Gee.HashMap<string, string>? data { get; internal set; default = null; }
/**
* construct a Event
* @param path the path to load
*/
public Event (Yaml.EVT evtype, int line=0, int? style=null, Gee.HashMap<string, string>? data=null)
{
this.evtype = evtype;
this.line = line;
this.style = style;
this.data = data;
}
}

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using GLib;
using Gee;
using Pluie;
/**
* parent class representing a Yaml Node whenether was his type
*/
public class Pluie.Yaml.Finder : Object
{
/**
* Context node
*/
private Yaml.Node? context { get; internal set; }
/**
* default Yaml.Node constructor
* @param parent the parent node
* @param indent the current indentation in node representation string
* @param type the NODE_TYPE of Yaml.Node to create
*/
public Finder (Yaml.Node context)
{
this.context = context;
}
/**
* get a path definition depending of current Node.mode
* if path definition is Yaml.FIND_MODE.DOT the path is convert to a
* Yaml.FIND_MODE.SQUARE_BRACKETS path definition
* @path the path definition
* @return the find path definition according to current Node.mode
*/
private string find_path (string path)
{
MatchInfo? mi = null;
string search = "";
if (BaseNode.mode.is_dot ()) {
var stk = /([^.]*)\./.split (path);
foreach (var s in stk) {
if (s.strip() != "") {
if (/([^\{]+)(\{[0-9]+\})/.match (s, 0, out mi)) {
search = search + "[%s]%s".printf (mi.fetch (1), mi.fetch (2));
}
else {
search = search + "[%s]".printf (s);
}
}
}
}
else {
search = path;
}
return search;
}
/**
* indicates if specifiyed MatchInfo is related to a mapping node only or a collection node
* @param mi
*/
private bool is_collection_path (MatchInfo mi, bool mappingOnly = false)
{
return (mi.fetch (FIND_COLLECTION.OPEN) == "[" && mi.fetch (FIND_COLLECTION.CLOSE) == "]") || (!mappingOnly &&
(mi.fetch (FIND_COLLECTION.OPEN) == "{" && mi.fetch (FIND_COLLECTION.CLOSE) == "}"));
}
/**
* find a specific child Yaml.Node corresponding to path definition
* path definition has two mode.
* default mode is Yaml.FIND_MODE.SQUARE_BRACKETS
* node's key name must be enclosed in square brackets
* sequence entry must be enclosed in curly brace
* ex : [grandfather][father][son]{2}
*
* other mode is Yaml.FIND_MODE.DOT
* child mapping node are separated by dot :
* ex : grandfather.father.son{2}
* @param path the definition to retriew the child node
*/
public Yaml.Node? find (string path, Yaml.Node? context = null)
{
string search = this.find_path (path);
bool match = false;
Yaml.Node? node = context == null ? this.context : context;
Regex reg = /(\[|\{)([^\]]*)(\]|\})/;
MatchInfo mi;
try {
of.echo ("find node %s".printf (path));
for (reg.match (search, 0, out mi) ; mi.matches () ; mi.next ()) {
of.echo ("%s%s%s".printf (mi.fetch (1), mi.fetch (2), mi.fetch (3)));
if (this.is_collection_path (mi)) {
if (!match) match = true;
if (this.is_collection_path (mi, true)) {
node = (node as Yaml.NodeMap).map[mi.fetch (FIND_COLLECTION.KEY)];
}
else {
int index = int.parse (mi.fetch (FIND_COLLECTION.KEY));
var n = node as Yaml.NodeSequence;
if (index < n.list.size && index >= 0) {
node = n.list.get (index);
}
else node = null;
}
if (node == null) break;
}
}
}
catch (RegexError e) {
of.error (e.message);
}
if (!match) node = null;
return node;
}
}

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using GLib;
using Pluie;
public interface Pluie.Yaml.Node : Object
{
/**
* universal unique identifier
*/
public abstract string uuid { get; internal set; }
/**
* node type related to Yaml.NODE_TYPE
*/
public abstract Yaml.NODE_TYPE node_type { get; internal set; }
public abstract int indent { get; internal set; }
/**
* parent node
*/
public abstract Yaml.Node? parent { get; internal set; }
/**
* current node data for Yaml.NodeScalar node
*/
public abstract string? data { get; internal set; default = null; }
/**
* current node name (key)
*/
public abstract string? name { get; internal set; default = null; }
/**
* add a child node to current collection (mapping or sequence) node
* @param child the Yaml.Node child to add
*/
public abstract bool add (Yaml.Node node);
/**
* stuff on changing parent node
* @param child the childto add
*/
protected abstract bool on_change_parent ();
/**
* remove a child
* @param child the child to remove
*/
protected abstract bool remove_child (Yaml.Node child);
/**
* check if node has child nodes
*/
public abstract bool has_child_nodes ();
/**
* give the next sibling node
*/
public abstract Yaml.Node? next_sibling ();
/**
* give the previous sibling node
*/
public abstract Yaml.Node? previous_sibling ();
/**
* give the root parent node
*/
public abstract Yaml.Node? get_root_node ();
/**
* get a presentation string of current Yaml.Node
*/
public abstract string to_string (bool withIndent = true);
}

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src/vala/Pluie/Yaml.NodeCollection.vala Normal file
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using GLib;
using Pluie;
/**
* a class representing a mapping node
*/
public interface Pluie.Yaml.NodeCollection
{
/**
* retriew the previous sibling of specifiyed child node
* @param child
*/
public abstract Yaml.Node? child_previous_sibling (Yaml.Node child);
/**
* retriew the next sibling of specifiyed child node
* @param child
*/
public abstract Yaml.Node? child_next_sibling (Yaml.Node child);
/**
* count childnodes
*/
public abstract int get_size ();
/**
* check if current node contains the specifiyed child node
* @param child
*/
public abstract bool contains (Yaml.Node node);
}

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using GLib;
using Pluie;
using Gee;
/**
* a class representing a mapping node
*/
public class Pluie.Yaml.NodeMap : Yaml.BaseNode, Yaml.NodeCollection
{
/**
* map collection for Yaml.NodeMap node
*/
public HashMap<string, Yaml.Node> map { get; internal set; }
/**
* construct a mapping node
* @param parent the parent node
* @param indent the current indentation in node representation string
* @param name the current name (key) of mapping node
*/
public NodeMap (Yaml.Node? parent = null, int indent = 0, string? name = null)
{
base (parent, indent, NODE_TYPE.MAPPING);
this.map = new HashMap<string, Yaml.Node> ();
this.name = name;
}
/**
* remove a child
* @param child the child to remove
*/
protected override bool remove_child (Yaml.Node child)
{
bool done = true;
if (this.map != null && this.map.has_key (child.name)) {
done = this.map.unset(child.name);
}
return done;
}
/**
* add a child node to current collection (mapping or sequence) node
* @param child the Yaml.Node child to add
*/
public override bool add (Yaml.Node node)
{
node.on_change_parent ();
node.indent = this.indent + 4;
node.parent = this;
if (this.map == null) {
this.map = new HashMap<string, Yaml.Node> ();
}
this.map.set (node.name, node);
return true;
}
/**
* display childs
*/
public void display_childs ()
{
of.action ("display_childs map\n");
of.echo (this.to_string ());
if (this.map.size > 0) {
foreach (string key in this.map.keys) {
of.echo (this.map.get(key).to_string ());
}
}
else {
of.echo (of.s_indent ()+"node has no childs");
}
}
/**
* count childnodes
*/
public int get_size () {
return this.map.size;
}
/**
* check if current node contains the specifiyed child node
* @param child
*/
public override bool contains (Yaml.Node child) {
bool has = false;
foreach (Yaml.Node entry in map.values) {
if (child.uuid == entry.uuid) {
has = true;
break;
}
}
return has;
}
/**
* retriew the next sibling of specifiyed child node
* @param child
*/
public virtual Yaml.Node? child_next_sibling (Yaml.Node child)
{
Yaml.Node? target = null;
bool match = false;
if (this.map.size > 0) {
foreach (string key in this.map.keys) {
if (child.name == key) {
match = true;
continue;
}
if (match) {
target = this.map.get(key);
}
}
}
return target;
}
/**
* retriew the previous sibling of specifiyed child node
* @param child
*/
public virtual Yaml.Node? child_previous_sibling (Yaml.Node child)
{
Yaml.Node? target = null;
bool match = false;
if (this.map.size > 0) {
foreach (string key in this.map.keys) {
if (child.name == key) {
match = true;
break;
}
target = this.map.get(key);
}
}
if (!match) {
target = null;
}
return target;
}
}

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using Pluie;
/**
* a class representing a single/pair mapping node
*/
public class Pluie.Yaml.NodeRoot : Yaml.NodeMap
{
/**
* construct a single/pair mapping node
* @param parent the parent node
* @param indent the current indentation in node representation string
* @param name the current name (key) of sequence node
* @param data the current scalar data
*/
public NodeRoot (Yaml.Node? parent = null, int indent = 0, string? name = null, string? data = null)
{
this.standard (null, -4, NODE_TYPE.ROOT);
this.name = "PluieYamlRootNode";
}
}

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src/vala/Pluie/Yaml.NodeScalar.vala Normal file
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using Pluie;
/**
* a class representing a scalar node
*/
public class Pluie.Yaml.NodeScalar : Yaml.BaseNode
{
/**
* construct a scalar node
* @param parent the parent node
* @param indent the current indentation in node representation string
* @param data the current scalar data
*/
public NodeScalar (Yaml.Node? parent = null, int indent = 0, string? data = null)
{
base (parent, indent, NODE_TYPE.SCALAR);
this.data = data;
}
}

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src/vala/Pluie/Yaml.NodeSequence.vala Normal file
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using Pluie;
using Gee;
/**
* a class representing a sequence node
*/
public class Pluie.Yaml.NodeSequence : Yaml.BaseNode, Yaml.NodeCollection
{
/**
* sequence collection for Yaml.NodeSequence node
*/
public ArrayList<Yaml.Node> list { get; internal set; }
/**
* construct a sequence node
* @param parent the parent node
* @param indent the current indentation in node representation string
* @param name the current name (key) of sequence node
*/
public NodeSequence (Yaml.Node? parent = null, int indent = 0, string? name = null)
{
base (parent, indent, NODE_TYPE.SEQUENCE);
this.name = name;
}
/**
* remove a child
* @param child the child to remove
*/
protected override bool remove_child (Yaml.Node child)
{
bool done = true;
if (this.list.contains (child)) {
done = this.list.remove (child);
}
return done;
}
/**
* add a child node to current collection (mapping or sequence) node
* @param child the Yaml.Node child to add
*/
public override bool add (Yaml.Node node)
{
if (this.list == null) {
this.list = new ArrayList<Yaml.Node> ();
}
node.on_change_parent ();
node.indent = this.indent + 4;
node.parent = this;
return this.list.add (node);
}
/**
* add a child Yaml.NodeScalar containing specifiyed data
* @param data the scalar data
* @return the scalar node
*/
public Yaml.Node add_scalar (string? data = null)
{
Yaml.Node scalar = new Yaml.NodeScalar (this, this.indent+4, data);
this.add (scalar);
return scalar;
}
/**
* retriew a child node throught specifiyed index
* @param index index of searched child
* @return the child node
*/
public Yaml.Node item (int index)
{
return this.list.get (index);
}
/**
* retriew the first child node
* @return the first child node
*/
public Yaml.Node first ()
{
return this.list.first ();
}
/**
* retriew the last child node
* @return the last child node
*/
public Yaml.Node last ()
{
return this.list.last ();
}
/**
* display childs
*/
public void display_childs ()
{
of.action ("display_childs sequence\n");
of.echo (this.to_string ());
if (this.list!= null && this.list.size > 0) {
foreach (Yaml.Node child in this.list) {
of.echo (child.to_string ());
}
}
else {
of.echo (of.s_indent ()+"node has no childs");
}
}
/**
* count childnodes
*/
public int get_size () {
return this.list.size;
}
/**
* check if current node contains the specifiyed child node
* @param child
*/
public override bool contains (Yaml.Node child) {
return this.list.contains (child);
}
/**
* retriew the next sibling of specifiyed child node
* @param child
*/
public Yaml.Node? child_next_sibling (Yaml.Node child)
{
Yaml.Node? target = null;
if (this.list.size > 0 && this.list.contains (child)) {
int index = this.list.index_of (child);
target = this.list.get(index+1);
}
return target;
}
/**
* retriew the previous sibling of specifiyed child node
* @param child
*/
public Yaml.Node? child_previous_sibling (Yaml.Node child)
{
Yaml.Node? target = null;
if (this.list.size > 0 && this.list.contains (child)) {
int index = this.list.index_of (child);
if (index > 0) {
target = this.list.get(index-1);
}
}
return target;
}
}

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src/vala/Pluie/Yaml.NodeSinglePair.vala Normal file
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using Pluie;
/**
* a class representing a single/pair mapping node
*/
public class Pluie.Yaml.NodeSinglePair : Yaml.NodeMap
{
/**
* construct a single/pair mapping node
* @param parent the parent node
* @param indent the current indentation in node representation string
* @param name the current name (key) of sequence node
* @param data the current scalar data
*/
public NodeSinglePair (Yaml.Node? parent = null, int indent = 0, string? name = null, string? data = null)
{
this.standard (parent, indent, NODE_TYPE.SINGLE_PAIR);
this.name = name;
if (data != null) {
var scalar = new Yaml.NodeScalar (this, this.indent+4, data);
scalar.name = "singlepair";
this.add (scalar);
}
}
/**
* get child scalar node
* @return the scalar node
*/
public Yaml.Node? scalar ()
{
return this.map["singlepair"];
}
}

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using GLib;
using Gee;
using Pluie;
extern void yaml_parse_file(string srcPath, string destPath);
/**
* a tiny Yaml Parser whose purpose is not to comply with all yaml specifications but to parse yaml configuration files
* todo improve description of what is expected
*/
public class Pluie.Yaml.Processor
{
const string REG_EVENT = "^([0-9]+), ([0-9]+)(.*)$";
const string REG_VERSION = "^, ([0-9]+), ([0-9]+)$";
const string REG_TAG = "^, \"([^\"]*)\", \"([^\"]*)\"$";
const string REG_ERROR = "^, \"([^\"]*)\"$";
const string REG_SCALAR = "^, ([0-9]+), \"([^\"]*)\"$";
const string REG_ANCHOR = "^, \"([^\"]*)\"$";
const string REG_ALIAS = "^, \"([^\"]*)\"$";
/**
* enum linked to used RegExp in parse_line
*/
enum MIEVT
{
NONE,
LINE,
TYPE,
DATA
}
/**
* enum linked to used RegExp in parse_line
*/
enum MIEVT_VERSION
{
NONE,
MAJOR,
MINOR
}
/**
* enum linked to used RegExp in parse_line
*/
enum MIEVT_SCALAR
{
NONE,
STYLE,
DATA
}
/**
* enum linked to used RegExp in parse_line
*/
enum MIEVT_TAG
{
NONE,
HANDLE,
SUFFIX
}
/**
* enum linked to used RegExp in parse_line
*/
enum MIEVT_ANCHOR
{
NONE,
ID,
}
/**
* enum linked to used RegExp in parse_line
*/
enum MIEVT_ERROR
{
NONE,
DATA,
}
/**
* indicate if file has been sucessfully parsed
*/
public bool done;
/**
* indicate if parsing msut stop
*/
bool stop;
/**
* the mark use to rewind line throught Io.Reader
*/
Io.StreamLineMark? mark;
/**
* Reader used to load content yaml file
*/
Io.Reader reader;
/**
* Events list
*/
Gee.LinkedList<Yaml.Event> events { get; internal set; }
/**
*Anchor map
*/
Gee.HashMap<string, int> anchors { get; internal set; }
/**
* @param path the path of file to parse
*/
public Processor (string path)
{
var destPath = Path.build_filename (Environment.get_tmp_dir (), Path.get_basename(path));
yaml_parse_file(path, destPath);
this.reader = new Io.Reader (destPath);
this.scan ();
}
/**
* parse a file related to specifiyed path
* @param path the path to parse
*/
public bool scan (string? path = null)
{
Dbg.in (Log.METHOD, "path:'%s'".printf (path), Log.LINE, Log.FILE);
if (path != null) {
this.reader.load (path);
}
else {
this.reader.rewind(new Io.StreamLineMark(0, 0));
}
this.events = new Gee.LinkedList<Yaml.Event>();
this.anchors = new Gee.HashMap<string, int>();
this.stop = this.done = false;
of.action ("Scanning events", path);
while (this.reader.readable) {
this.scan_line (this.reader.read ());
}
this.process_events ();
this.done = true;
Dbg.out (Log.METHOD, "done:%d".printf ((int)done), Log.LINE, Log.FILE);
return this.done;
}
/**
*
*/
private void process_events ()
{
of.action ("Reading events");
foreach (Yaml.Event event in this.events) {
int len = 24 - event.evtype.infos ().length;
stdout.printf(" [ %s"+@" %$(len)s "+", %d, %s", event.evtype.infos (), " ", event.line, event.style != null ? event.style.to_string () : "0");
if (event.data != null && event.data.size > 0) {
stdout.printf (", {");
var it = event.data.map_iterator ();
string sep;
for (var has_next = it.next (); has_next; has_next = it.next ()) {
sep = it.has_next () ? ", " : "";
stdout.printf ("%s: %s%s", it.get_key (), it.get_value (), sep);
}
stdout.printf (" }");
}
stdout.printf("]\n");
}
}
/**
* set event version
* @param evtdata the current data event
* @param line the current line
* @throws GLib.RegexError
*/
private void set_event_version(string evtdata, int line) throws GLib.RegexError
{
MatchInfo mi = null;
Regex reg = new Regex (REG_VERSION);
HashMap<string, string>? data = null;
if (reg.match (evtdata, 0, out mi)) {
data = new HashMap<string, string>();
data.set("major", mi.fetch (MIEVT_VERSION.MAJOR));
data.set("minor", mi.fetch (MIEVT_VERSION.MINOR));
}
this.events.offer(new Yaml.Event(EVT.VERSION_DIRECTIVE, line, null, data));
}
/**
* set event tag
* @param evtdata the current data event
* @param line the current line
* @throws GLib.RegexError
*/
private void set_event_tag(string evtdata, int line) throws GLib.RegexError
{
MatchInfo mi = null;
Regex reg = new Regex (REG_TAG);
HashMap<string, string>? data = null;
if (reg.match (evtdata, 0, out mi)) {
data = new HashMap<string, string>();
data.set("handle", mi.fetch (MIEVT_TAG.HANDLE));
data.set("suffix", mi.fetch (MIEVT_TAG.SUFFIX));
}
this.events.offer(new Yaml.Event(EVT.TAG, line, null, data));
}
/**
* set event version
* @param evtdata the current data event
* @param line the current line
* @throws GLib.RegexError
*/
private void set_event_error(string evtdata, int line) throws GLib.RegexError
{
MatchInfo mi = null;
Regex reg = new Regex (REG_ERROR);
HashMap<string, string>? data = null;
if (reg.match (evtdata, 0, out mi)) {
data = new HashMap<string, string>();
data.set("error", mi.fetch (MIEVT_ERROR.DATA));
}
this.events.offer(new Yaml.Event(EVT.NONE, line, null, data));
}
/**
* set event scalar
* @param evtdata the current data event
* @param line the current line
* @throws GLib.RegexError
*/
private void set_event_scalar(string evtdata, int line) throws GLib.RegexError
{
MatchInfo mi = null;
Regex reg = new Regex (REG_SCALAR);
HashMap<string, string>? data = null;
int? style = null;
if (reg.match (evtdata, 0, out mi)) {
style = int.parse(mi.fetch (MIEVT_SCALAR.STYLE));
data = new HashMap<string, string>();
data.set("data", mi.fetch (MIEVT_SCALAR.DATA));
}
this.events.offer(new Yaml.Event(EVT.SCALAR, line, style, data));
}
/**
* set event anchor
* @param evtdata the current data event
* @param line the current line
* @throws GLib.RegexError
*/
private void set_event_anchor(string evtdata, int line) throws GLib.RegexError
{
MatchInfo mi = null;
Regex reg = new Regex (REG_ANCHOR);
HashMap<string, string>? data = null;
if (reg.match (evtdata, 0, out mi)) {
data = new HashMap<string, string>();
data.set("id", mi.fetch (MIEVT_ANCHOR.ID));
}
this.anchors.set(data.get("id"), this.events.size);
this.events.offer(new Yaml.Event(EVT.ANCHOR, line, null, data));
}
/**
* set event alias
* @param evtdata the current data event
* @param line the current line
* @throws GLib.RegexError
*/
private void set_event_alias(string evtdata, int line) throws GLib.RegexError
{
MatchInfo mi = null;
Regex reg = new Regex (REG_ALIAS);
HashMap<string, string>? data = null;
if (reg.match (evtdata, 0, out mi)) {
data = new HashMap<string, string>();
data.set("id", mi.fetch (MIEVT_ANCHOR.ID));
}
this.events.offer(new Yaml.Event(EVT.ALIAS, line, null, data));
}
/**
* parse specifiyed line
* @param data the current line
*/
private void scan_line (string? data = null)
{
Dbg.in (Log.METHOD, null, Log.LINE, Log.FILE);
if (data == null) {
this.stop = true;
return;
}
try {
MatchInfo mi = null;
Regex reg = new Regex (REG_EVENT);
if (reg.match (data, 0, out mi)) {
int line = int.parse(mi.fetch (MIEVT.LINE));
int type = int.parse(mi.fetch (MIEVT.TYPE));
string evtdata = mi.fetch (MIEVT.DATA);
switch(type) {
case EVT.SCALAR :
this.set_event_scalar(evtdata, line);
break;
case EVT.ANCHOR :
this.set_event_anchor(evtdata, line);
break;
case EVT.ALIAS :
this.set_event_alias(evtdata, line);
break;
case EVT.TAG :
this.set_event_tag(evtdata, line);
break;
case EVT.VERSION_DIRECTIVE :
this.set_event_version(evtdata, line);
break;
case EVT.NONE :
this.set_event_error(evtdata, line);
break;
default :
this.events.offer(new Yaml.Event((Yaml.EVT)type, line, null, null));
break;
}
}
}
catch (GLib.RegexError e) {
Dbg.error (e.message, Log.METHOD, Log.LINE, Log.FILE);
}
Dbg.out (Log.METHOD, null, Log.LINE, Log.FILE);
}
}

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namespace Pluie
{
namespace Yaml
{
/**
* haxadecimal sequence
*/
const string hexa_sequence = "0123456789abcdef";
/**
* convert %02x string to uint8
* @param hex2byte string representation of hexadecimal value on 1 byte
*/
uint8 hex_to_dec (string hexbyte)
{
return (uint8) (
Yaml.hexa_sequence.index_of(hexbyte.data[0].to_string ())*16 +
Yaml.hexa_sequence.index_of(hexbyte.data[1].to_string ())
);
}
/**
* enum MatchInfo keys of Yaml.Mode.find method related to mode FIND_MODE.SQUARE_BRACKETS of Yaml.Node
*/
public enum EVT {
NONE,
STREAM_START,
STREAM_END,
VERSION_DIRECTIVE,
TAG_DIRECTIVE,
DOCUMENT_START,
DOCUMENT_END,
BLOCK_SEQUENCE_START,
BLOCK_MAPPING_START,
BLOCK_END,
FLOW_SEQUENCE_START,
FLOW_SEQUENCE_END,
FLOW_MAPPING_START,
FLOW_MAPPING_END,
BLOCK_ENTRY,
FLOW_ENTRY,
KEY,
VALUE,
ALIAS,
ANCHOR,
TAG,
SCALAR;
/**
*@return infos related to EVT
*/
public string infos ()
{
return this.to_string().substring("PLUIE_YAML_".length);
}
}
/**
* enum possible find mode of Yaml.Node.mode
*/
public enum FIND_MODE
{
DOT,
SQUARE_BRACKETS;
/**
*
*/
public bool is_dot ()
{
return this == DOT;
}
}
/**
* enum MatchInfo keys of Yaml.Mode.find method related to mode FIND_MODE.SQUARE_BRACKETS of Yaml.Node
*/
internal enum FIND_COLLECTION
{
PATH,
OPEN,
KEY,
CLOSE;
}
/**
* enum MatchInfo keys of Yaml.Node.find method related to mode FIND_MODE.DOT of Yaml.Node
*/
internal enum FIND_DOT
{
PATH,
KEY,
SEQUENCE;
}
/**
* enum possible type of Yaml.Node
*/
public enum NODE_TYPE
{
UNDEFINED,
ROOT,
SCALAR,
SINGLE_PAIR,
MAPPING,
SEQUENCE;
/**
* @return if current NODE_TYPE match a collection node (root|mapping|sequence)
*/
public bool is_collection ()
{
return this == MAPPING || this == SEQUENCE || this == ROOT;
}
/**
* @return if current NODE_TYPE match a scalar node
*/
public bool is_scallar ()
{
return this == SCALAR;
}
/**
* @return if current NODE_TYPE match a single/pair mapping node
*/
public bool is_single_pair ()
{
return this == SINGLE_PAIR;
}
/**
* @return if current NODE_TYPE match a mapping node
*/
public bool is_mapping ()
{
return this == MAPPING;
}
/**
* @return if current NODE_TYPE match a sequence node
*/
public bool is_sequence ()
{
return this == SEQUENCE;
}
/**
* @return if current NODE_TYPE match a root node
*/
public bool is_root ()
{
return this == ROOT;
}
/**
*@return infos related to NODE_TYPE
*/
public string infos ()
{
return this.to_string().substring("PLUIE_YAML_NODE_TYPE_".length);
}
}
/**
*@return universal infos related to NODE_TYPE
*/
public string uuid ()
{
var sb = new StringBuilder();
for (var i = 0; i < 4; i++) sb.append (Random.next_int ().to_string ("%08x"));
var h = sb.str;
var d = Yaml.hex_to_dec (h.substring (16, 2));
d &= 0x3f;
d |= 0x80;
return "%s-%s-4%s-%02x%s-%s".printf (
h.substring (0, 8),
h.substring (8, 4),
h.substring (13, 3),
d,
h.substring (18, 2),
h.substring (20)
);
}
}
}