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/*
* A parser for RUBYGEM's specification
*
* Copyright (c) 2021, Red Hat, Inc.
* Copyright (c) 2021, Masatake YAMATO
*
* Author: Masatake YAMATO <yamato@redhat.com>
*
* 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.
*
* Reference:
* - https://guides.rubygems.org/specification-reference/
*
* See also:
* - https://yehudakatz.com/2010/12/16/clarifying-the-roles-of-the-gemspec-and-gemfile/
*/
/*
* INCLUDE FILES
*/
#include "general.h" /* must always come first */
#include "entry.h"
#include "parse.h"
#include "subparser.h"
#include "ruby.h"
#include <string.h>
/*
* DATA STRUCTURES
*/
struct sGemSpecSubparser {
rubySubparser ruby;
vString *var_name;
};
typedef enum {
K_GEM,
} gemspecKind;
typedef enum {
R_GEM_RUNTIME_DEP,
R_GEM_DEVEL_DEP,
} gemspecGemRole;
static roleDefinition GemSpecGemRoles [] = {
{ true, "runtimeDep", "specifying runtime dependency" },
{ true, "develDep", "specifying development dependency" },
};
static kindDefinition GemSpecKinds [] = {
{ true, 'g', "gem", "gems",
.referenceOnly = false, ATTACH_ROLES(GemSpecGemRoles)},
};
/*
* FUNCTIONS
*/
static void findGemSpecTags (void)
{
scheduleRunningBaseparser (0);
}
static int lineNotify (rubySubparser *s, const unsigned char **cp)
{
struct sGemSpecSubparser *gemspec = (struct sGemSpecSubparser *)s;
const unsigned char *p = *cp;
if (vStringLength (gemspec->var_name) > 0
&& (strncmp ((char *)p, vStringValue (gemspec->var_name),
vStringLength (gemspec->var_name)) == 0))
{
int kind = K_GEM;
int role = ROLE_DEFINITION_INDEX;
bool is_attr = true;
p += vStringLength (gemspec->var_name);
if (strncmp ((const char *)p, "name", 4) == 0)
p += 4;
else if (strncmp ((const char *)p, "add_dependency", 14) == 0)
{
p += 14;
role = R_GEM_RUNTIME_DEP;
is_attr = false;
}
else if (strncmp ((const char *)p, "add_runtime_dependency", 22) == 0)
{
p += 22;
role = R_GEM_RUNTIME_DEP;
is_attr = false;
}
else if (strncmp ((const char *)p, "add_development_dependency", 26) == 0)
{
p += 26;
role = R_GEM_DEVEL_DEP;
is_attr = false;
}
else
p = NULL;
if (p)
{
rubySkipWhitespace (&p);
if ((!is_attr) || *p == '=')
{
if (is_attr)
{
p++;
rubySkipWhitespace (&p);
}
if (*p == '"' || *p == '\'')
{
unsigned char b = *p;
vString *gem = vStringNew ();
p++;
if (rubyParseString (&p, b, gem))
{
if (role == ROLE_DEFINITION_INDEX)
makeSimpleTag (gem, kind);
else
makeSimpleRefTag (gem, kind, role);
}
vStringDelete (gem);
}
}
}
}
else if (rubyCanMatchKeywordWithAssign (&p, "Gem::Specification.new"))
{
vString *vstr = vStringNew ();
bool curly_bracket = false;
rubySkipWhitespace (&p);
curly_bracket = (*p == '{');
if (curly_bracket
|| (rubyParseMethodName (&p, vstr)
&& vStringLength (vstr) == 2
&& strcmp (vStringValue(vstr), "do") == 0))
{
if (curly_bracket)
p++;
rubySkipWhitespace (&p);
if (*p == '|')
{
p++;
rubySkipWhitespace (&p);
vStringClear (vstr);
if (rubyParseMethodName (&p, vstr))
{
vStringPut (vstr, '.');
vStringCopy(gemspec->var_name, vstr);
}
}
}
vStringDelete (vstr);
}
return CORK_NIL;
}
static void inputStart (subparser *s)
{
struct sGemSpecSubparser *gemspec = (struct sGemSpecSubparser *)s;
gemspec->var_name = vStringNew ();
}
static void inputEnd (subparser *s)
{
struct sGemSpecSubparser *gemspec = (struct sGemSpecSubparser *)s;
vStringDelete (gemspec->var_name); /* NULL is acceptable. */
gemspec->var_name = NULL;
}
extern parserDefinition* GemSpecParser (void)
{
static const char *const extensions [] = { "gemspec", NULL };
static struct sGemSpecSubparser gemspecSubparser = {
.ruby = {
.subparser = {
.direction = SUBPARSER_SUB_RUNS_BASE,
.inputStart = inputStart,
.inputEnd = inputEnd,
},
.lineNotify = lineNotify,
},
.var_name = NULL,
};
static parserDependency dependencies [] = {
[0] = { DEPTYPE_SUBPARSER, "Ruby", &gemspecSubparser },
};
parserDefinition* const def = parserNew ("GemSpec");
def->dependencies = dependencies;
def->dependencyCount = ARRAY_SIZE(dependencies);
def->kindTable = GemSpecKinds;
def->kindCount = ARRAY_SIZE (GemSpecKinds);
def->extensions = extensions;
def->parser = findGemSpecTags;
def->useCork = CORK_QUEUE;
return def;
}
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