diff options
Diffstat (limited to 'plugins/yaml/python')
-rw-r--r-- | plugins/yaml/python/Makefile.am | 1 | ||||
-rw-r--r-- | plugins/yaml/python/collection.c | 71 | ||||
-rw-r--r-- | plugins/yaml/python/module.c | 4 | ||||
-rw-r--r-- | plugins/yaml/python/node.c | 237 | ||||
-rw-r--r-- | plugins/yaml/python/scalar.c | 353 | ||||
-rw-r--r-- | plugins/yaml/python/scalar.h | 45 | ||||
-rw-r--r-- | plugins/yaml/python/tree.c | 78 |
7 files changed, 512 insertions, 277 deletions
diff --git a/plugins/yaml/python/Makefile.am b/plugins/yaml/python/Makefile.am index a750343..8d6ddaa 100644 --- a/plugins/yaml/python/Makefile.am +++ b/plugins/yaml/python/Makefile.am @@ -7,6 +7,7 @@ libyamlpython_la_SOURCES = \ module.h module.c \ node.h node.c \ reader.h reader.c \ + scalar.h scalar.c \ tree.h tree.c libyamlpython_la_LDFLAGS = diff --git a/plugins/yaml/python/collection.c b/plugins/yaml/python/collection.c index 7166784..e21bb9e 100644 --- a/plugins/yaml/python/collection.c +++ b/plugins/yaml/python/collection.c @@ -31,6 +31,7 @@ #include <plugins/pychrysalide/helpers.h> +#include "node.h" #include "../collection.h" @@ -38,9 +39,6 @@ /* Crée un nouvel objet Python de type 'YamlCollection'. */ static PyObject *py_yaml_collection_new(PyTypeObject *, PyObject *, PyObject *); -/* Recherche les noeuds correspondant à un chemin. */ -static PyObject *py_yaml_collection_find_by_path(PyObject *, PyObject *); - /* Indique la nature d'une collection Yaml. */ static PyObject *py_yaml_collection_is_sequence(PyObject *, void *); @@ -71,7 +69,7 @@ static PyObject *py_yaml_collection_new(PyTypeObject *type, PyObject *args, PyOb GYamlCollection *collec; /* Création GLib à transmettre */ #define YAML_COLLECTION_DOC \ - "YamlCollection handle a collection of Yaml nodes.\n" \ + "YamlCollection handles a collection of Yaml nodes.\n" \ "\n" \ "Instances can be created using the following constructor:\n" \ "\n" \ @@ -95,68 +93,6 @@ static PyObject *py_yaml_collection_new(PyTypeObject *type, PyObject *args, PyOb /****************************************************************************** * * -* Paramètres : self = variable non utilisée ici. * -* args = arguments fournis à l'appel. * -* * -* Description : Recherche les noeuds correspondant à un chemin. * -* * -* Retour : Liste de noeuds trouvés, éventuellement vide. * -* * -* Remarques : - * -* * -******************************************************************************/ - -static PyObject *py_yaml_collection_find_by_path(PyObject *self, PyObject *args) -{ - PyObject *result; /* Instance à retourner */ - const char *path; /* Chemin d'accès à traiter */ - int ret; /* Bilan de lecture des args. */ - GYamlCollection *collec; /* Version GLib du type */ - GYamlNode **found; /* Créations GLib à transmettre*/ - size_t count; /* Quantité de trouvailles */ - size_t i; /* Boucle de parcours */ - -#define YAML_COLLECTION_FIND_BY_PATH PYTHON_METHOD_DEF \ -( \ - find_by_path, "path", \ - METH_VARARGS, py_yaml_collection, \ - "Find nodes from a Yaml node using a path.\n" \ - "\n" \ - "Paths are node keys separated by '/', such as '/my/path/to/node'." \ -) - - ret = PyArg_ParseTuple(args, "s", &path); - if (!ret) return NULL; - - collec = G_YAML_COLLEC(pygobject_get(self)); - - g_yaml_collection_find_by_path(collec, path, &found, &count); - - result = PyTuple_New(count); - - for (i = 0; i < count; i++) - { -#ifndef NDEBUG - ret = PyTuple_SetItem(result, i, pygobject_new(G_OBJECT(found[i]))); - assert(ret == 0); -#else - PyTuple_SetItem(result, i, pygobject_new(G_OBJECT(found[i]))); -#endif - - g_object_unref(G_OBJECT(found[i])); - - } - - if (found != NULL) - free(found); - - return result; - -} - - -/****************************************************************************** -* * * Paramètres : self = objet Python concerné par l'appel. * * closure = non utilisé ici. * * * @@ -264,7 +200,6 @@ static PyObject *py_yaml_collection_is_sequence(PyObject *self, void *closure) PyTypeObject *get_python_yaml_collection_type(void) { static PyMethodDef py_yaml_collection_methods[] = { - YAML_COLLECTION_FIND_BY_PATH, { NULL } }; @@ -317,7 +252,7 @@ bool register_python_yaml_collection(PyObject *module) dict = PyModule_GetDict(module); - if (!register_class_for_pygobject(dict, G_TYPE_YAML_COLLEC, type, &PyGObject_Type)) + if (!register_class_for_pygobject(dict, G_TYPE_YAML_COLLEC, type, get_python_yaml_node_type())) return false; return true; diff --git a/plugins/yaml/python/module.c b/plugins/yaml/python/module.c index 2a4401e..0726dc4 100644 --- a/plugins/yaml/python/module.c +++ b/plugins/yaml/python/module.c @@ -37,6 +37,7 @@ #include "line.h" #include "node.h" #include "reader.h" +#include "scalar.h" #include "tree.h" @@ -109,10 +110,11 @@ bool populate_yaml_module(void) module = get_access_to_python_module("pychrysalide.plugins.yaml"); + if (result) result = register_python_yaml_node(module); if (result) result = register_python_yaml_collection(module); if (result) result = register_python_yaml_line(module); - if (result) result = register_python_yaml_node(module); if (result) result = register_python_yaml_reader(module); + if (result) result = register_python_yaml_scalar(module); if (result) result = register_python_yaml_tree(module); assert(result); diff --git a/plugins/yaml/python/node.c b/plugins/yaml/python/node.c index 17aa065..31daa04 100644 --- a/plugins/yaml/python/node.c +++ b/plugins/yaml/python/node.c @@ -37,8 +37,14 @@ -/* Crée un nouvel objet Python de type 'YamlNode'. */ -static PyObject *py_yaml_node_new(PyTypeObject *, PyObject *, PyObject *); +#define YAML_NODE_DOC \ + "YamlNode handles a node in a Yaml tree.\n" \ + "\n" \ + "There are three kinds of node contents defined in the Yaml specifications:\n" \ + "* scalar, implemented by the pychrysalide.plugins.yaml.YamlScalar object.\n" \ + "* sequence and mapping, implemented by the pychrysalide.plugins.yaml.YamlCollection object." + + /* Recherche les noeuds correspondant à un chemin. */ static PyObject *py_yaml_node_find_by_path(PyObject *, PyObject *); @@ -46,59 +52,6 @@ static PyObject *py_yaml_node_find_by_path(PyObject *, PyObject *); /* Recherche l'unique noeud correspondant à un chemin. */ static PyObject *py_yaml_node_find_one_by_path(PyObject *, PyObject *); -/* Fournit la ligne principale associée à un noeud. */ -static PyObject *py_yaml_node_get_yaml_line(PyObject *, void *); - -/* Attache une collection de noeuds Yaml à un noeud. */ -static int py_yaml_node_set_collection(PyObject *, PyObject *, void *); - -/* Fournit une éventuelle collection rattachée à un noeud. */ -static PyObject *py_yaml_node_get_collection(PyObject *, void *); - - - -/****************************************************************************** -* * -* Paramètres : type = type de l'objet à instancier. * -* args = arguments fournis à l'appel. * -* kwds = arguments de type key=val fournis. * -* * -* Description : Crée un nouvel objet Python de type 'YamlNode'. * -* * -* Retour : Instance Python mise en place. * -* * -* Remarques : - * -* * -******************************************************************************/ - -static PyObject *py_yaml_node_new(PyTypeObject *type, PyObject *args, PyObject *kwds) -{ - PyObject *result; /* Instance à retourner */ - GYamlLine *key; /* Ligne principale du noeud */ - int ret; /* Bilan de lecture des args. */ - GYamlNode *node; /* Création GLib à transmettre */ - -#define YAML_NODE_DOC \ - "YamlNode handle a node in a Yaml tree.\n" \ - "\n" \ - "Instances can be created using the following constructor:\n" \ - "\n" \ - " YamlNode(key)\n" \ - "\n" \ - "Where key is the main Yaml line for the node." - - ret = PyArg_ParseTuple(args, "O&", &convert_to_yaml_line, &key); - if (!ret) return NULL; - - node = g_yaml_node_new(key); - - g_object_ref_sink(G_OBJECT(node)); - result = pygobject_new(G_OBJECT(node)); - g_object_unref(node); - - return result; - -} /****************************************************************************** @@ -117,6 +70,7 @@ static PyObject *py_yaml_node_new(PyTypeObject *type, PyObject *args, PyObject * static PyObject *py_yaml_node_find_by_path(PyObject *self, PyObject *args) { PyObject *result; /* Instance à retourner */ + int prepare; /* Orientation des résultats */ const char *path; /* Chemin d'accès à traiter */ int ret; /* Bilan de lecture des args. */ GYamlNode *node; /* Version GLib du noeud */ @@ -126,19 +80,26 @@ static PyObject *py_yaml_node_find_by_path(PyObject *self, PyObject *args) #define YAML_NODE_FIND_BY_PATH PYTHON_METHOD_DEF \ ( \ - find_by_path, "path", \ + find_by_path, "path, /, prepare=False", \ METH_VARARGS, py_yaml_node, \ "Find nodes from a Yaml node using a path.\n" \ "\n" \ "Paths are node keys separated by '/', such as '/my/path/to/node'." \ + "\n" \ + "In case where the path ends with a trailing '/', the operation can" \ + " be used to prepare a further look by returning a node which can be" \ + " searched by a new call to this function instead of returning all its" \ + " contained nodes." \ ) - ret = PyArg_ParseTuple(args, "s", &path); + prepare = 0; + + ret = PyArg_ParseTuple(args, "s|p", &path, &prepare); if (!ret) return NULL; node = G_YAML_NODE(pygobject_get(self)); - g_yaml_node_find_by_path(node, path, &found, &count); + g_yaml_node_find_by_path(node, path, prepare, &found, &count); result = PyTuple_New(count); @@ -179,6 +140,7 @@ static PyObject *py_yaml_node_find_by_path(PyObject *self, PyObject *args) static PyObject *py_yaml_node_find_one_by_path(PyObject *self, PyObject *args) { PyObject *result; /* Instance à retourner */ + int prepare; /* Orientation des résultats */ const char *path; /* Chemin d'accès à traiter */ int ret; /* Bilan de lecture des args. */ GYamlNode *node; /* Version GLib du noeud */ @@ -186,21 +148,28 @@ static PyObject *py_yaml_node_find_one_by_path(PyObject *self, PyObject *args) #define YAML_NODE_FIND_ONE_BY_PATH PYTHON_METHOD_DEF \ ( \ - find_one_by_path, "path", \ + find_one_by_path, "path, /, prepare=False", \ METH_VARARGS, py_yaml_node, \ "Find a given node from a Yaml node using a path.\n" \ "\n" \ "Paths are node keys separated by '/', such as '/my/path/to/node'." \ "\n" \ "Only one node has to match the path for the function success." \ + "\n" \ + "In case where the path ends with a trailing '/', the operation can" \ + " be used to prepare a further look by returning a node which can be" \ + " searched by a new call to this function instead of returning all its" \ + " contained nodes." \ ) - ret = PyArg_ParseTuple(args, "s", &path); + prepare = 0; + + ret = PyArg_ParseTuple(args, "s|p", &path, &prepare); if (!ret) return NULL; node = G_YAML_NODE(pygobject_get(self)); - found = g_yaml_node_find_one_by_path(node, path); + found = g_yaml_node_find_one_by_path(node, path, prepare); if (found == NULL) { @@ -220,146 +189,6 @@ static PyObject *py_yaml_node_find_one_by_path(PyObject *self, PyObject *args) /****************************************************************************** * * -* Paramètres : self = objet Python concerné par l'appel. * -* closure = non utilisé ici. * -* * -* Description : Fournit la ligne principale associée à un noeud. * -* * -* Retour : Ligne Yaml à l'origine du noeud. * -* * -* Remarques : - * -* * -******************************************************************************/ - -static PyObject *py_yaml_node_get_yaml_line(PyObject *self, void *closure) -{ - PyObject *result; /* Résultat à retourner */ - GYamlNode *node; /* Version GLib du noeud */ - GYamlLine *line; /* Line Yaml associée */ - -#define YAML_NODE_YAML_LINE_ATTRIB PYTHON_GET_DEF_FULL \ -( \ - yaml_line, py_yaml_node, \ - "Orginal Yaml line linked to the node." \ -) - - node = G_YAML_NODE(pygobject_get(self)); - - line = g_yaml_node_get_yaml_line(node); - - if (line == NULL) - { - result = Py_None; - Py_INCREF(result); - } - else - { - result = pygobject_new(G_OBJECT(line)); - g_object_unref(G_OBJECT(line)); - } - - return result; - -} - - - - - -/****************************************************************************** -* * -* Paramètres : self = contenu binaire à manipuler. * -* value = collection de noeuds Yaml. * -* closure = adresse non utilisée ici. * -* * -* Description : Attache une collection de noeuds Yaml à un noeud. * -* * -* Retour : Jeu d'attributs liés au contenu courant. * -* * -* Remarques : - * -* * -******************************************************************************/ - -static int py_yaml_node_set_collection(PyObject *self, PyObject *value, void *closure) -{ - int result; /* Bilan à renvoyer */ - GYamlNode *node; /* Version GLib du noeud */ - GYamlCollection *collec; /* Version GLib de la valeur */ - - node = G_YAML_NODE(pygobject_get(self)); - - if (value == Py_None) - { - g_yaml_node_set_collection(node, NULL); - result = 0; - } - - else - { - if (!convert_to_yaml_collection(value, &collec)) - result = -1; - - else - { - g_yaml_node_set_collection(node, collec); - result = 0; - } - - } - - return result; - -} - - -/****************************************************************************** -* * -* Paramètres : self = contenu binaire à manipuler. * -* closure = adresse non utilisée ici. * -* * -* Description : Fournit une éventuelle collection rattachée à un noeud. * -* * -* Retour : Collection de noeuds Yaml ou None. * -* * -* Remarques : - * -* * -******************************************************************************/ - -static PyObject *py_yaml_node_get_collection(PyObject *self, void *closure) -{ - PyObject *result; /* Instance à retourner */ - GYamlNode *node; /* Version GLib du noeud */ - GYamlCollection *collec; /* Collection à transmettre */ - -#define YAML_NODE_COLLECTION_ATTRIB PYTHON_GETSET_DEF_FULL \ -( \ - collection, py_yaml_node, \ - "Provide or define the collection of nodes attached to another Yaml node." \ -) - - node = G_YAML_NODE(pygobject_get(self)); - - collec = g_yaml_node_get_collection(node); - - if (collec == NULL) - { - result = Py_None; - Py_INCREF(result); - } - - else - { - result = pygobject_new(G_OBJECT(collec)); - g_object_unref(collec); - } - - return result; - -} - - -/****************************************************************************** -* * * Paramètres : - * * * * Description : Fournit un accès à une définition de type à diffuser. * @@ -379,8 +208,6 @@ PyTypeObject *get_python_yaml_node_type(void) }; static PyGetSetDef py_yaml_node_getseters[] = { - YAML_NODE_YAML_LINE_ATTRIB, - YAML_NODE_COLLECTION_ATTRIB, { NULL } }; @@ -391,13 +218,13 @@ PyTypeObject *get_python_yaml_node_type(void) .tp_name = "pychrysalide.plugins.yaml.YamlNode", .tp_basicsize = sizeof(PyGObject), - .tp_flags = Py_TPFLAGS_DEFAULT, + .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_IS_ABSTRACT | Py_TPFLAGS_BASETYPE, .tp_doc = YAML_NODE_DOC, .tp_methods = py_yaml_node_methods, .tp_getset = py_yaml_node_getseters, - .tp_new = py_yaml_node_new + .tp_new = no_python_constructor_allowed }; diff --git a/plugins/yaml/python/scalar.c b/plugins/yaml/python/scalar.c new file mode 100644 index 0000000..ee38edf --- /dev/null +++ b/plugins/yaml/python/scalar.c @@ -0,0 +1,353 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * scalar.c - équivalent Python du fichier "plugins/yaml/scalar.c" + * + * Copyright (C) 2019 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#include "scalar.h" + + +#include <pygobject.h> + + +#include <plugins/pychrysalide/helpers.h> + + +#include "collection.h" +#include "line.h" +#include "node.h" +#include "../scalar.h" + + + +/* Crée un nouvel objet Python de type 'YamlScalar'. */ +static PyObject *py_yaml_scalar_new(PyTypeObject *, PyObject *, PyObject *); + +/* Fournit la ligne principale associée à un noeud. */ +static PyObject *py_yaml_scalar_get_yaml_line(PyObject *, void *); + +/* Attache une collection de noeuds Yaml à un noeud. */ +static int py_yaml_scalar_set_collection(PyObject *, PyObject *, void *); + +/* Fournit une éventuelle collection rattachée à un noeud. */ +static PyObject *py_yaml_scalar_get_collection(PyObject *, void *); + + + +/****************************************************************************** +* * +* Paramètres : type = type de l'objet à instancier. * +* args = arguments fournis à l'appel. * +* kwds = arguments de type key=val fournis. * +* * +* Description : Crée un nouvel objet Python de type 'YamlScalar'. * +* * +* Retour : Instance Python mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_yaml_scalar_new(PyTypeObject *type, PyObject *args, PyObject *kwds) +{ + PyObject *result; /* Instance à retourner */ + GYamlLine *key; /* Ligne principale du noeud */ + int ret; /* Bilan de lecture des args. */ + GYamlScalar *node; /* Création GLib à transmettre */ + +#define YAML_SCALAR_DOC \ + "YamlScalar handles a scalar node in a Yaml tree.\n" \ + "\n" \ + "Instances can be created using the following constructor:\n" \ + "\n" \ + " YamlScalar(key)\n" \ + "\n" \ + "Where key is the main Yaml line for the scalar." + + ret = PyArg_ParseTuple(args, "O&", &convert_to_yaml_line, &key); + if (!ret) return NULL; + + node = g_yaml_scalar_new(key); + + g_object_ref_sink(G_OBJECT(node)); + result = pygobject_new(G_OBJECT(node)); + g_object_unref(node); + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : self = objet Python concerné par l'appel. * +* closure = non utilisé ici. * +* * +* Description : Fournit la ligne principale associée à un noeud. * +* * +* Retour : Ligne Yaml à l'origine du noeud. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_yaml_scalar_get_yaml_line(PyObject *self, void *closure) +{ + PyObject *result; /* Résultat à retourner */ + GYamlScalar *node; /* Version GLib du noeud */ + GYamlLine *line; /* Line Yaml associée */ + +#define YAML_SCALAR_YAML_LINE_ATTRIB PYTHON_GET_DEF_FULL \ +( \ + yaml_line, py_yaml_scalar, \ + "Orginal Yaml line linked to the scalar." \ +) + + node = G_YAML_SCALAR(pygobject_get(self)); + + line = g_yaml_scalar_get_yaml_line(node); + + if (line == NULL) + { + result = Py_None; + Py_INCREF(result); + } + else + { + result = pygobject_new(G_OBJECT(line)); + g_object_unref(G_OBJECT(line)); + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : self = contenu binaire à manipuler. * +* value = collection de noeuds Yaml. * +* closure = adresse non utilisée ici. * +* * +* Description : Attache une collection de noeuds Yaml à un noeud. * +* * +* Retour : Jeu d'attributs liés au contenu courant. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static int py_yaml_scalar_set_collection(PyObject *self, PyObject *value, void *closure) +{ + int result; /* Bilan à renvoyer */ + GYamlScalar *node; /* Version GLib du noeud */ + GYamlCollection *collec; /* Version GLib de la valeur */ + + node = G_YAML_SCALAR(pygobject_get(self)); + + if (value == Py_None) + { + g_yaml_scalar_set_collection(node, NULL); + result = 0; + } + + else + { + if (!convert_to_yaml_collection(value, &collec)) + result = -1; + + else + { + g_yaml_scalar_set_collection(node, collec); + result = 0; + } + + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : self = contenu binaire à manipuler. * +* closure = adresse non utilisée ici. * +* * +* Description : Fournit une éventuelle collection rattachée à un noeud. * +* * +* Retour : Collection de noeuds Yaml ou None. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_yaml_scalar_get_collection(PyObject *self, void *closure) +{ + PyObject *result; /* Instance à retourner */ + GYamlScalar *node; /* Version GLib du noeud */ + GYamlCollection *collec; /* Collection à transmettre */ + +#define YAML_SCALAR_COLLECTION_ATTRIB PYTHON_GETSET_DEF_FULL \ +( \ + collection, py_yaml_scalar, \ + "Provide or define the collection of nodes attached to another Yaml node." \ +) + + node = G_YAML_SCALAR(pygobject_get(self)); + + collec = g_yaml_scalar_get_collection(node); + + if (collec == NULL) + { + result = Py_None; + Py_INCREF(result); + } + + else + { + result = pygobject_new(G_OBJECT(collec)); + g_object_unref(collec); + } + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : - * +* * +* Description : Fournit un accès à une définition de type à diffuser. * +* * +* Retour : Définition d'objet pour Python. * +* * +* Remarques : - * +* * +******************************************************************************/ + +PyTypeObject *get_python_yaml_scalar_type(void) +{ + static PyMethodDef py_yaml_scalar_methods[] = { + { NULL } + }; + + static PyGetSetDef py_yaml_scalar_getseters[] = { + YAML_SCALAR_YAML_LINE_ATTRIB, + YAML_SCALAR_COLLECTION_ATTRIB, + { NULL } + }; + + static PyTypeObject py_yaml_scalar_type = { + + PyVarObject_HEAD_INIT(NULL, 0) + + .tp_name = "pychrysalide.plugins.yaml.YamlScalar", + .tp_basicsize = sizeof(PyGObject), + + .tp_flags = Py_TPFLAGS_DEFAULT, + + .tp_doc = YAML_SCALAR_DOC, + + .tp_methods = py_yaml_scalar_methods, + .tp_getset = py_yaml_scalar_getseters, + .tp_new = py_yaml_scalar_new + + }; + + return &py_yaml_scalar_type; + +} + + +/****************************************************************************** +* * +* Paramètres : module = module dont la définition est à compléter. * +* * +* Description : Prend en charge l'objet 'pychrysalide.plugins.....YamlScalar.* +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +bool register_python_yaml_scalar(PyObject *module) +{ + PyTypeObject *type; /* Type Python 'YamlScalar' */ + PyObject *dict; /* Dictionnaire du module */ + + type = get_python_yaml_scalar_type(); + + dict = PyModule_GetDict(module); + + if (!register_class_for_pygobject(dict, G_TYPE_YAML_SCALAR, type, get_python_yaml_node_type())) + return false; + + return true; + +} + + +/****************************************************************************** +* * +* Paramètres : arg = argument quelconque à tenter de convertir. * +* dst = destination des valeurs récupérées en cas de succès. * +* * +* Description : Tente de convertir en noeud d'arborescence de format Yaml. * +* * +* Retour : Bilan de l'opération, voire indications supplémentaires. * +* * +* Remarques : - * +* * +******************************************************************************/ + +int convert_to_yaml_scalar(PyObject *arg, void *dst) +{ + int result; /* Bilan à retourner */ + + result = PyObject_IsInstance(arg, (PyObject *)get_python_yaml_scalar_type()); + + switch (result) + { + case -1: + /* L'exception est déjà fixée par Python */ + result = 0; + break; + + case 0: + PyErr_SetString(PyExc_TypeError, "unable to convert the provided argument to Yaml scalar"); + break; + + case 1: + *((GYamlScalar **)dst) = G_YAML_SCALAR(pygobject_get(arg)); + break; + + default: + assert(false); + break; + + } + + return result; + +} diff --git a/plugins/yaml/python/scalar.h b/plugins/yaml/python/scalar.h new file mode 100644 index 0000000..3812bd7 --- /dev/null +++ b/plugins/yaml/python/scalar.h @@ -0,0 +1,45 @@ + +/* Chrysalide - Outil d'analyse de fichiers binaires + * scalar.h - prototypes pour l'équivalent Python du fichier "plugins/yaml/scalar.h" + * + * Copyright (C) 2019 Cyrille Bagard + * + * This file is part of Chrysalide. + * + * Chrysalide 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. + * + * Chrysalide 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + + +#ifndef _PLUGINS_YAML_PYTHON_SCALAR_H +#define _PLUGINS_YAML_PYTHON_SCALAR_H + + +#include <Python.h> +#include <stdbool.h> + + + +/* Fournit un accès à une définition de type à diffuser. */ +PyTypeObject *get_python_yaml_scalar_type(void); + +/* Prend en charge l'objet 'pychrysalide.plugins.yaml.YamlScalar'. */ +bool register_python_yaml_scalar(PyObject *); + +/* Tente de convertir en noeud d'arborescence de format Yaml. */ +int convert_to_yaml_scalar(PyObject *, void *); + + + +#endif /* _PLUGINS_YAML_PYTHON_SCALAR_H */ diff --git a/plugins/yaml/python/tree.c b/plugins/yaml/python/tree.c index eeab3de..c23406a 100644 --- a/plugins/yaml/python/tree.c +++ b/plugins/yaml/python/tree.c @@ -150,6 +150,7 @@ static PyObject *py_yaml_tree_new(PyTypeObject *type, PyObject *args, PyObject * static PyObject *py_yaml_tree_find_by_path(PyObject *self, PyObject *args) { PyObject *result; /* Instance à retourner */ + int prepare; /* Orientation des résultats */ const char *path; /* Chemin d'accès à traiter */ int ret; /* Bilan de lecture des args. */ GYamlTree *tree; /* Version GLib du type */ @@ -159,19 +160,26 @@ static PyObject *py_yaml_tree_find_by_path(PyObject *self, PyObject *args) #define YAML_TREE_FIND_BY_PATH PYTHON_METHOD_DEF \ ( \ - find_by_path, "path", \ + find_by_path, "path, /, prepare=False", \ METH_VARARGS, py_yaml_tree, \ "Find nodes in a Yaml tree using a path.\n" \ "\n" \ "Paths are node keys separated by '/', such as '/my/path/to/node'." \ + "\n" \ + "In case where the path ends with a trailing '/', the operation can" \ + " be used to prepare a further look by returning a node which can be" \ + " searched by a new call to this function instead of returning all its" \ + " contained nodes." \ ) - ret = PyArg_ParseTuple(args, "s", &path); + prepare = 0; + + ret = PyArg_ParseTuple(args, "s|p", &path, &prepare); if (!ret) return NULL; tree = G_YAML_TREE(pygobject_get(self)); - g_yaml_tree_find_by_path(tree, path, &found, &count); + g_yaml_tree_find_by_path(tree, path, prepare, &found, &count); result = PyTuple_New(count); @@ -198,6 +206,69 @@ static PyObject *py_yaml_tree_find_by_path(PyObject *self, PyObject *args) /****************************************************************************** * * +* Paramètres : self = variable non utilisée ici. * +* args = arguments fournis à l'appel. * +* * +* Description : Recherche l'unique noeud correspondant à un chemin. * +* * +* Retour : Noeud avec correspondance établie ou None. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static PyObject *py_yaml_tree_find_one_by_path(PyObject *self, PyObject *args) +{ + PyObject *result; /* Instance à retourner */ + int prepare; /* Orientation des résultats */ + const char *path; /* Chemin d'accès à traiter */ + int ret; /* Bilan de lecture des args. */ + GYamlTree *tree; /* Version GLib du type */ + GYamlNode *found; /* Création GLib à transmettre */ + +#define YAML_TREE_FIND_ONE_BY_PATH PYTHON_METHOD_DEF \ +( \ + find_one_by_path, "path, /, prepare=False", \ + METH_VARARGS, py_yaml_tree, \ + "Find a given node from a Yaml node using a path.\n" \ + "\n" \ + "Paths are node keys separated by '/', such as '/my/path/to/node'." \ + "\n" \ + "Only one node has to match the path for the function success." \ + "\n" \ + "In case where the path ends with a trailing '/', the operation can" \ + " be used to prepare a further look by returning a node which can be" \ + " searched by a new call to this function instead of returning all its" \ + " contained nodes." \ +) + + prepare = 0; + + ret = PyArg_ParseTuple(args, "s|p", &path, &prepare); + if (!ret) return NULL; + + tree = G_YAML_TREE(pygobject_get(self)); + + found = g_yaml_tree_find_one_by_path(tree, path, prepare); + + if (found == NULL) + { + result = Py_None; + Py_INCREF(result); + } + else + { + result = pygobject_new(G_OBJECT(found)); + g_object_unref(G_OBJECT(found)); + } + + return result; + +} + + +/****************************************************************************** +* * * Paramètres : self = objet Python concerné par l'appel. * * closure = non utilisé ici. * * * @@ -249,6 +320,7 @@ PyTypeObject *get_python_yaml_tree_type(void) { static PyMethodDef py_yaml_tree_methods[] = { YAML_TREE_FIND_BY_PATH, + YAML_TREE_FIND_ONE_BY_PATH, { NULL } }; |