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/*
*
* Copyright (c) 2016, Masatake YAMATO
* Copyright (c) 2016, Red Hat, K.K.
*
* This source code is released for free distribution under the terms of the
* GNU General Public License version 2 or (at your option) any later version.
*
*/
#include "general.h" /* must always come first */
#include "debug.h"
#include "entry.h"
#include "kind.h"
#include "yaml.h"
#include "parse.h"
#include "subparser.h"
#include <stdio.h>
typedef enum {
K_PLAY
} ansiblePlaybookKind;
static kindDefinition AnsiblePlaybookKinds [] = {
{ true, 'p', "play", "plays" },
};
struct yamlBlockTypeStack {
yaml_token_type_t type;
int associatedCorkIndex;
struct yamlBlockTypeStack *next;
};
/* - name: "THE NAME" */
enum ansiblePlaybookPlayDetectingState {
DSTAT_PLAY_NAME_INITIAL,
DSTAT_PLAY_NAME_KEY,
DSTAT_PLAY_NAME_KEY_SCALAR,
DSTAT_PLAY_NAME_VALUE,
};
struct sAnsiblePlaybookSubparser {
yamlSubparser yaml;
struct yamlBlockTypeStack *type_stack;
enum ansiblePlaybookPlayDetectingState play_detection_state;
};
static void pushBlockType (struct sAnsiblePlaybookSubparser *ansible, yaml_token_type_t t)
{
struct yamlBlockTypeStack *s;
s = xMalloc (1, struct yamlBlockTypeStack);
s->next = ansible->type_stack;
ansible->type_stack = s;
s->type = t;
s->associatedCorkIndex = CORK_NIL;
}
static void popBlockType (struct sAnsiblePlaybookSubparser *ansible,
yaml_token_t *token)
{
struct yamlBlockTypeStack *s;
s = ansible->type_stack;
ansible->type_stack = s->next;
s->next = NULL;
tagEntryInfo *tag = getEntryInCorkQueue (s->associatedCorkIndex);
if (tag && token)
attachYamlPosition (tag, token, true);
eFree (s);
}
static void popAllBlockType (struct sAnsiblePlaybookSubparser *ansible,
yaml_token_t *token)
{
while (ansible->type_stack)
popBlockType (ansible, token);
}
static bool stateStackMatch (struct yamlBlockTypeStack *stack,
yaml_token_type_t *expectation,
unsigned int length,
bool partial)
{
if (length == 0)
{
if (stack == NULL)
return true;
else if (partial)
return true;
else
return false;
}
if (stack == NULL)
return false;
if (stack->type == expectation[0])
return stateStackMatch (stack->next, expectation + 1, length - 1, partial);
else
return false;
}
static bool scalarNeq (yaml_token_t *token, unsigned int len, const char* val)
{
if ((token->data.scalar.length == len)
&& (strncmp (val, (char *)token->data.scalar.value, len) == 0))
return true;
else
return false;
}
static void ansiblePlaybookPlayStateMachine (struct sAnsiblePlaybookSubparser *ansible,
yaml_token_t *token)
{
yaml_token_type_t play_expect[] = {
YAML_BLOCK_MAPPING_START_TOKEN,
YAML_BLOCK_SEQUENCE_START_TOKEN,
};
switch (token->type)
{
case YAML_KEY_TOKEN:
if (stateStackMatch (ansible->type_stack,
play_expect, ARRAY_SIZE (play_expect),
false))
ansible->play_detection_state = DSTAT_PLAY_NAME_KEY;
else
ansible->play_detection_state = DSTAT_PLAY_NAME_INITIAL;
break;
case YAML_SCALAR_TOKEN:
if ((ansible->play_detection_state == DSTAT_PLAY_NAME_KEY)
&& scalarNeq (token, 4, "name"))
ansible->play_detection_state = DSTAT_PLAY_NAME_KEY_SCALAR;
else if (ansible->play_detection_state == DSTAT_PLAY_NAME_VALUE)
{
tagEntryInfo tag;
initTagEntry (&tag, (char *)token->data.scalar.value,
K_PLAY);
attachYamlPosition (&tag, token, false);
Assert (ansible->type_stack->associatedCorkIndex == CORK_NIL);
ansible->type_stack->associatedCorkIndex = makeTagEntry (&tag);
ansible->play_detection_state = DSTAT_PLAY_NAME_INITIAL;
}
else
ansible->play_detection_state = DSTAT_PLAY_NAME_INITIAL;
break;
case YAML_VALUE_TOKEN:
if (ansible->play_detection_state == DSTAT_PLAY_NAME_KEY_SCALAR)
ansible->play_detection_state = DSTAT_PLAY_NAME_VALUE;
else
ansible->play_detection_state = DSTAT_PLAY_NAME_INITIAL;
break;
default:
ansible->play_detection_state = DSTAT_PLAY_NAME_INITIAL;
break;
}
}
static void newTokenCallback (yamlSubparser *s, yaml_token_t *token)
{
if (token->type == YAML_BLOCK_SEQUENCE_START_TOKEN
|| token->type == YAML_BLOCK_MAPPING_START_TOKEN)
pushBlockType ((struct sAnsiblePlaybookSubparser *)s, token->type);
ansiblePlaybookPlayStateMachine ((struct sAnsiblePlaybookSubparser *)s, token);
if (token->type == YAML_BLOCK_END_TOKEN)
popBlockType ((struct sAnsiblePlaybookSubparser *)s, token);
else if (token->type == YAML_STREAM_END_TOKEN)
popAllBlockType ((struct sAnsiblePlaybookSubparser *)s, token);
}
static void inputStart(subparser *s)
{
((struct sAnsiblePlaybookSubparser*)s)->play_detection_state = DSTAT_PLAY_NAME_INITIAL;
((struct sAnsiblePlaybookSubparser*)s)->type_stack = NULL;
}
static void inputEnd(subparser *s)
{
popAllBlockType ((struct sAnsiblePlaybookSubparser *)s, NULL);
Assert (((struct sAnsiblePlaybookSubparser*)s)->type_stack == NULL);
}
static void
findAnsiblePlaybookTags (void)
{
scheduleRunningBaseparser (0);
}
extern parserDefinition* AnsiblePlaybookParser (void)
{
static struct sAnsiblePlaybookSubparser ansiblePlaybookSubparser = {
.yaml = {
.subparser = {
.direction = SUBPARSER_BI_DIRECTION,
.inputStart = inputStart,
.inputEnd = inputEnd,
},
.newTokenNotfify = newTokenCallback
},
};
static parserDependency dependencies [] = {
{ DEPTYPE_SUBPARSER, "Yaml", &ansiblePlaybookSubparser },
};
parserDefinition* const def = parserNew ("AnsiblePlaybook");
def->dependencies = dependencies;
def->dependencyCount = ARRAY_SIZE (dependencies);
def->kindTable = AnsiblePlaybookKinds;
def->kindCount = ARRAY_SIZE (AnsiblePlaybookKinds);
def->parser = findAnsiblePlaybookTags;
def->useCork = CORK_QUEUE;
return def;
}
/* vi:set tabstop=4 shiftwidth=4: */
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