NAME Regexp::Pattern::License - Regular expressions for legal licenses VERSION Version v3.10.0 SYNOPSIS use Regexp::Pattern::License; use Regexp::Pattern; my $string = 'GNU General Public License version 3 or later'; print "Found!\n" if $string =~ re( 'License::gpl_3' ); # prints "Found!" DESCRIPTION Regexp::Pattern::License provides a hash of regular expression patterns related to legal software licenses. Regexp::Pattern is a convention for organizing reusable regex patterns. PATTERNS Licensing traits Patterns each covering a single trait occuring in licenses. Each of these patterns has the tag type:trait . * addr_fsf *Since v3.4.0.* * addr_fsf_franklin *Since v3.4.0.* * addr_fsf_franklin_steet *Since v3.4.0.* * addr_fsf_mass *Since v3.4.0.* * addr_fsf_temple *Since v3.4.0.* * any_of *Since v3.1.92.* * by *Since v3.3.0.* * by_apache *Since v3.3.0.* * by_fsf *Since v3.3.0.* * by_james_clark *Since v3.3.0.* * by_psf *Since v3.3.0.* * by_sam_hocevar *Since v3.3.0.* * clause_retention * clause_reproduction * clause_advertising * clause_advertising_always * clause_non_endorsement * except_389 * except_autoconf_data *Since v3.4.0.* * except_autoconf_2 *Since v3.4.0.* * except_autoconf_2_archive *Since v3.4.0.* * except_autoconf_2_autotroll *Since v3.4.0.* * except_autoconf_2_g10 *Since v3.4.0.* * except_autoconf_3 *Since v3.4.0.* * except_bison_1_24 *Since v3.4.0.* * except_bison_2_2 *Since v3.4.0.* * except_classpath_2 * except_ecos_2 *Since v3.6.0.* * except_epl * except_epl_mpl * except_faust *Since v3.4.0.* * except_font_2 *Since v3.7.0.* * except_gcc_2 *Since v3.7.0.* * except_gcc_3_1 *Since v3.7.0.* * except_gstreamer * except_libtool * except_mif * except_openssl *Since v3.4.0.* * except_ocaml-lgpl * except_openssl-lgpl *Since v3.4.0.* * except_openssl_s3 *Since v3.4.0.* * except_prefix_agpl *Since v3.4.0.* * except_prefix_generic *Since v3.4.0.* * except_prefix_gpl *Since v3.4.0.* * except_prefix_gpl_clisp *Since v3.4.0.* * except_prefix_lgpl *Since v3.4.0.* * except_proguard *Since v3.4.0.* * except_qt_gpl_1 *Since v3.4.0.* * except_qt_gpl_eclipse *Since v3.4.0.* * except_qt_gpl_openssl *Since v3.4.0.* * except_qt_kernel *Since v3.4.0.* * except_qt_lgpl_1_1 *Since v3.4.0.* * except_qt_nosource *Since v3.4.0.* * except_sdc *Since v3.4.0.* * except_sollya_4_1 *Since v3.4.0.* * except_warzone *Since v3.4.0.* * except_wxwindows *Since v3.6.0.* * except_xerces *Since v3.4.0.* * fsf_unlimited * fsf_unlimited_retention * generated *Since v3.4.0.* * license_label * license_label_spdx *Since v3.9.0.* * license_label_trove *Since v3.1.100.* * licensed_under *Since v3.1.92.* * or_at_option *Since v3.1.92.* * usage_rfn *Since v3.2.0.* * version *Since v3.1.92.* * version_later * version_later_paragraph * version_later_postfix * version_number * version_number_suffix * version_only * version_prefix * version_numberstring *Since v3.1.92.* Single licenses Patterns each covering a single license. Each of these patterns has exactly one of these tags: type:unversioned type:versioned:decimal type:singleversion:* type:usage:*:* . * aal * abstyles * adobe_2006 * adobe_glyph * adsl * afl * afl_1_1 *Since v3.1.95.* * afl_1_2 *Since v3.1.95.* * afl_2 *Since v3.1.95.* * afl_2_1 *Since v3.1.95.* * afl_3 *Since v3.1.95.* * afmparse * agpl * agpl_1 *Since v3.1.102.* * agpl_1_only * agpl_1_or_later * agpl_2 * agpl_3 * agpl_3_only * agpl_3_or_later * aladdin * aladdin_8 *Since v3.1.91.* * aladdin_9 *Since v3.1.91.* * amdplpa * aml * ampas * antlr_pd * apache * apache_1 *Since v3.1.95.* * apache_1_1 *Since v3.1.95.* * apache_2 *Since v3.1.95.* * apafml * apl * apl_1 * apsl * apsl_1 * apsl_1_1 * apsl_1_2 * apsl_2 * artistic * artistic_1 *Since v3.1.95.* * artistic_1_cl8 *Since v3.1.95.* * artistic_1_perl *Since v3.1.95.* * artistic_2 * bahyph * barr * bdwgc *Since v3.1.0.* * bdwgc_matlab *Since v3.1.0.* * beerware * bittorrent * bittorrent_1 * bittorrent_1_1 * borceux * bsd_0_clause *Since v3.5.0.* * bsd_1_clause *Since v3.6.0.* * bsd_2_clause * bsd_2_clause_freebsd *Since v3.6.0.* * bsd_2_clause_netbsd *Since v3.6.0.* * bsd_2_clause_patent *Since v3.6.0.* * bsd_2_clause_views * bsd_3_clause * bsd_3_clause_attribution *Since v3.6.0.* * bsd_3_clause_clear *Since v3.6.0.* * bsd_3_clause_eclipse *Since v3.9.0.* * bsd_3_clause_lbnl *Since v3.6.0.* * bsd_3_clause_modification * bsd_3_clause_no_military_license *Since v3.6.0.* * bsd_3_clause_no_nuclear_license *Since v3.6.0.* * bsd_3_clause_no_nuclear_license_2014 *Since v3.6.0.* * bsd_3_clause_no_nuclear_warranty *Since v3.6.0.* * bsd_3_clause_refractions *Since v3.9.0.* * bsd_4_clause * bsd_4_clause_uc *Since v3.7.0.* * bsd_protection *Since v3.8.0.* * bsl *Since v3.1.90.* * bsl_1 *Since v3.1.90.* * bzip2 * bzip2_1_0_5 * bzip2_1_0_6 * cal *Since v3.5.0.* * cal_1 *Since v3.5.0.* * caldera * catosl * catosl_1_1 * cc_by * cc_by_1 *Since v3.1.101.* * cc_by_2 *Since v3.1.101.* * cc_by_2_5 *Since v3.1.101.* * cc_by_3 *Since v3.1.101.* * cc_by_4 *Since v3.1.101.* * cc_by_nc * cc_by_nc_1 *Since v3.1.101.* * cc_by_nc_2 *Since v3.1.101.* * cc_by_nc_2_5 *Since v3.1.101.* * cc_by_nc_3 *Since v3.1.101.* * cc_by_nc_4 *Since v3.1.101.* * cc_by_nc_nd * cc_by_nc_nd_1 *Since v3.1.101.* * cc_by_nc_nd_2 *Since v3.1.101.* * cc_by_nc_nd_2_5 *Since v3.1.101.* * cc_by_nc_nd_3 *Since v3.1.101.* * cc_by_nc_nd_4 *Since v3.1.101.* * cc_by_nc_sa * cc_by_nc_sa_1 *Since v3.1.101.* * cc_by_nc_sa_2 *Since v3.1.101.* * cc_by_nc_sa_2_5 *Since v3.1.101.* * cc_by_nc_sa_3 *Since v3.1.101.* * cc_by_nc_sa_4 *Since v3.1.101.* * cc_by_nd * cc_by_nd_1 *Since v3.1.101.* * cc_by_nd_2 *Since v3.1.101.* * cc_by_nd_2_5 *Since v3.1.101.* * cc_by_nd_3 *Since v3.1.101.* * cc_by_nd_4 *Since v3.1.101.* * cc_by_sa * cc_by_sa_1 *Since v3.1.101.* * cc_by_sa_2 *Since v3.1.101.* * cc_by_sa_2_5 *Since v3.1.101.* * cc_by_sa_3 *Since v3.1.101.* * cc_by_sa_4 *Since v3.1.101.* * cc_cc0 * cc_cc0_1 *Since v3.1.101.* * cc_devnations *Since v3.7.0.* * cc_devnations_2 *Since v3.7.0.* * cc_nc *Since v3.1.101.* * cc_nc_1 *Since v3.1.101.* * cc_nc_sa *Since v3.7.0.* * cc_nc_sa_1 *Since v3.7.0.* * cc_nc_sp *Since v3.7.0.* * cc_nc_sp_1 *Since v3.7.0.* * cc_nd_nc *Since v3.7.0.* * cc_nd_nc_1 *Since v3.7.0.* * cc_nd *Since v3.1.101.* * cc_nd_1 *Since v3.1.101.* * cc_pd *Since v3.7.0.* * cc_pdd *Since v3.7.0.* * cc_pddc *Since v3.7.0.* * cc_sa *Since v3.1.101.* * cc_sa_1 *Since v3.1.101.* * cc_sampling *Since v3.7.0.* * cc_sampling_1 *Since v3.7.0.* * cc_sp * cc_sp_1 *Since v3.7.0.* * cddl * cddl_1 *Since v3.1.101.* * cddl_1_1 *Since v3.1.101.* * cecill * cecill_1 * cecill_1_1 * cecill_2 * cecill_2_1 * cecill_b * cecill_b_1 *Since v3.1.95.* * cecill_c * cecill_c_1 *Since v3.1.95.* * cnri_jython * cnri_python * cnri_python_gpl_compat * condor *Since v3.8.0.* * condor_1_1 *Since v3.8.0.* * cpal * cpal_1 * cpl *Since v3.1.101.* * cpl_1 *Since v3.1.101.* * cpol * cpol_1_02 * crossword *Since v3.8.0.* * cryptix * cua_opl * cua_opl_1 * cube * curl * cvw *Since v3.5.0.* * d_fsl *Since v3.8.0.* * d_fsl_1 *Since v3.8.0.* * dbad *Since v3.8.0.* * dbad_0_2 *Since v3.8.0.* * dbad_0_3 *Since v3.8.0.* * dbad_1 *Since v3.8.0.* * dbad_1_1 *Since v3.8.0.* * dont_ask *Since v3.8.0.* * dsdp * ecl * ecl_1 * ecl_2 * ecos_1_1 *Since v3.6.0.* * ecos_2 *Since v3.6.0.* * efl *Since v3.6.0.* * efl_1 *Since v3.6.0.* * efl_2 *Since v3.6.0.* * entessa *Since v3.6.0.* * epl * epl_1 * epl_2 * erlpl *Since v3.7.0.* * erlpl_1_1 *Since v3.7.0.* * eudatagrid *Since v3.6.0.* * eupl * eupl_1 * eupl_1_1 * eupl_1_2 * eurosym * fair *Since v3.6.0.* * fair_source *Since v3.8.0.* * fair_source_0_9 *Since v3.8.0.* * fal *Since v3.8.0.* * fal_1_1 *Since v3.8.0.* * fal_1_2 *Since v3.8.0.* * fal_1_3 *Since v3.8.0.* * festival *Since v3.8.0.* * frameworx *Since v3.6.0.* * frameworx_1 *Since v3.6.0.* * fsfap * fsful * fsfullr * ftl * gfdl * gfdl_1_1 * gfdl_1_1_only * gfdl_1_1_or_later * gfdl_1_2 * gfdl_1_2_only * gfdl_1_2_or_later * gfdl_1_3 * gfdl_1_3_only * gfdl_1_3_or_later * gfdl_niv * glide *Since v3.8.0.* * gpl * gpl_1 *Since v3.3.0.* * gpl_1_only * gpl_1_or_later * gpl_2 *Since v3.3.0.* * gpl_2_only * gpl_2_or_later * gpl_3 *Since v3.3.0.* * gpl_3_only * gpl_3_or_later * gsoap *Since v3.7.0.* * gsoap_1.3b *Since v3.7.0.* * hpnd *Since v3.6.0.* * hpnd_sell *Since v3.6.0.* * ibm_pibs *Since v3.8.0.* * icu * ijg *Since v3.8.0.* * imlib2 *Since v3.8.0.* * intel *Since v3.5.0.* * ipa *Since v3.6.0.* * ipl * ipl_1 * isc * jabberpl *Since v3.5.0.* * json *Since v3.1.90.* * jython *Since v3.1.90.* * kevlin_henney *Since v3.1.90.* * leptonica *Since v3.8.0.* * lgpl * lgpl_2 * lgpl_2_only * lgpl_2_or_later * lgpl_2_1 * lgpl_2_1_only * lgpl_2_1_or_later * lgpl_3 * lgpl_3_only * lgpl_3_or_later * lgpl_bdwgc *Since v3.1.0.* * libpng * libtiff *Since v3.8.0.* * liliq_p *Since v3.6.0.* * liliq_p_1_1 *Since v3.6.0.* * liliq_r *Since v3.6.0.* * liliq_r_1_1 *Since v3.6.0.* * liliq_r_plus *Since v3.6.0.* * liliq_r_plus_1_1 *Since v3.6.0.* * llgpl * lpl *Since v3.6.0.* * lpl_1 *Since v3.6.0.* * lpl_1_02 *Since v3.6.0.* * lppl * lppl_1 * lppl_1_1 * lppl_1_2 * lppl_1_3a * lppl_1_3c * miros *Since v3.6.0.* * mit_0 *Since v3.6.0.* * mit_advertising * mit_cmu * mit_cmu_warranty * mit_enna * mit_epinions *Since v3.7.0.* * mit_feh * mit_new * mit_new_materials * mit_old * mit_oldstyle * mit_oldstyle_disclaimer * mit_oldstyle_permission * mit_open_group *Since v3.6.0.* * mit_openvision *Since v3.7.0.* * mit_osf *Since v3.7.0.* * mit_unixcrypt *Since v3.7.0.* * mit_whatever *Since v3.7.0.* * mit_widget *Since v3.7.0.* * mit_xfig *Since v3.7.0.* * motosoto *Since v3.5.0.* * mpich2 *Since v3.8.0.* * mpl * mpl_1 *Since v3.1.101.* * mpl_1_1 *Since v3.1.101.* * mpl_2 *Since v3.1.101.* * mpl_2_no_copyleft_exception *Since v3.8.0.* * ms_cl *Since v3.8.0.* * ms_pl * ms_rl * mulan *Since v3.5.0.* * mulan_1 *Since v3.5.0.* * mulan_2 *Since v3.5.0.* * multics *Since v3.6.0.* * nasa *Since v3.6.0.* * nasa_1_3 *Since v3.6.0.* * naumen *Since v3.6.0.* * nbpl *Since v3.8.0.* * nbpl_1 *Since v3.8.0.* * ncsa *Since v3.6.0.* * ngpl * nokia *Since v3.6.0.* * nosl *Since v3.8.0.* * nosl_1 *Since v3.8.0.* * npl * npl_1 * npl_1_1 * nposl *Since v3.6.0.* * nposl_3 *Since v3.6.0.* * ntp * ntp_disclaimer * oclc * oclc_1 * oclc_2 * odbl *Since v3.8.0.* * odbl_1 *Since v3.8.0.* * odc_by *Since v3.8.0.* * odc_by_1 *Since v3.8.0.* * ofl * ofl_1 *Since v3.1.101.* * ofl_1_no_rfn *Since v3.2.0.* * ofl_1_rfn *Since v3.2.0.* * ofl_1_1 *Since v3.1.101.* * ofl_1_1_no_rfn *Since v3.2.0.* * ofl_1_1_rfn *Since v3.2.0.* * ogc *Since v3.6.0.* * ogc_1 *Since v3.6.0.* * ogtsl * oldap *Since v3.5.0.* * oldap_1_1 *Since v3.5.0.* * oldap_1_2 *Since v3.5.0.* * oldap_1_3 *Since v3.5.0.* * oldap_1_4 *Since v3.5.0.* * oldap_2 *Since v3.5.0.* * oldap_2_0_1 *Since v3.5.0.* * oldap_2_1 *Since v3.5.0.* * oldap_2_2 *Since v3.5.0.* * oldap_2_2_1 *Since v3.5.0.* * oldap_2_2_2 *Since v3.5.0.* * oldap_2_3 *Since v3.5.0.* * oldap_2_4 *Since v3.5.0.* * oldap_2_5 *Since v3.5.0.* * oldap_2_6 *Since v3.5.0.* * oldap_2_7 *Since v3.5.0.* * oldap_2_8 *Since v3.5.0.* * openssl * opl *Since v3.6.0.* * opl_1 *Since v3.6.0.* * oset_pl *Since v3.6.0.* * oset_pl_2_1 *Since v3.6.0.* * osl * osl_1 * osl_1_1 * osl_2 * osl_2_1 * osl_3 * pddl *Since v3.8.0.* * pddl_1 *Since v3.8.0.* * peer_production *Since v3.8.0.* * php *Since v3.6.0.* * php_3 *Since v3.6.0.* * php_3_01 *Since v3.6.0.* * postgresql * psf_2 *Since v3.9.0.* * public_domain * qpl * qpl_1 * rpl * rpl_1 * rpl_1_1 * rpl_1_3 * rpl_1_5 * rpsl * rpsl_1 *Since v3.1.95.* * ruby * rscpl * sax_pd *Since v3.8.0.* * sds *Since v3.8.0.* * sds_1 *Since v3.8.0.* * sgi_b * sgi_b_1 *Since v3.1.101.* * sgi_b_1_1 *Since v3.1.101.* * sgi_b_2 *Since v3.1.101.* * simpl *Since v3.6.0.* * simpl_2 *Since v3.6.0.* * simple_w3c *Since v3.6.0.* * simple_w3c_1_1 *Since v3.6.0.* * sissl *Since v3.5.0.* * sissl_1_1 *Since v3.5.0.* * sissl_1_2 *Since v3.5.0.* * sleepycat *Since v3.6.0.* * sncl *Since v3.8.0.* * sncl_1_10 *Since v3.8.0.* * sncl_2_0_1 *Since v3.8.0.* * sncl_2_0_2 *Since v3.8.0.* * sncl_2_1 *Since v3.8.0.* * sncl_2_3 *Since v3.8.0.* * spl * spl_1 * ssleay *Since v3.2.0.* * stlport *Since v3.8.0.* * sugarcrm * sugarcrm_1_1_3 * tosl *Since v3.6.0.* * truecrypt *Since v3.8.0.* * truecrypt_3 *Since v3.8.0.* * ucl *Since v3.6.0.* * ucl_1 *Since v3.6.0.* * unicode_dfs *Since v3.9.0.* * unicode_dfs_2015 *Since v3.6.0.* * unicode_dfs_2016 *Since v3.6.0.* * unicode_strict * unicode_tou * unlicense * upl *Since v3.6.0.* * upl_1 *Since v3.6.0.* * vsl *Since v3.6.0.* * vsl_1 *Since v3.6.0.* * vspl *Since v3.8.0.* * w3c *Since v3.6.0.* * w3c_19980519 *Since v3.6.0.* * w3c_19980720 *Since v3.6.0.* * w3c_20021231 *Since v3.6.0.* * w3c_20150513 *Since v3.6.0.* * watcom * watcom_1 * wordnet *Since v3.8.0.* * wtfpl * wtfpl_1 *Since v3.1.95.* * wtfpl_2 *Since v3.1.95.* * wtfnmfpl *Since v3.1.95.* * wtfnmfpl_1 *Since v3.1.95.* * x11 *Since v3.6.0.* * xfree86 *Since v3.8.0.* * xfree86_1_1 *Since v3.8.0.* * xnet *Since v3.6.0.* * ypl *Since v3.8.0.* * ypl_1 *Since v3.8.0.* * ypl_1_1 *Since v3.8.0.* * zed *Since v3.8.0.* * zend *Since v3.8.0.* * zend_2 *Since v3.8.0.* * zimbra *Since v3.8.0.* * zimbra_1_3 *Since v3.8.0.* * zimbra_1_4 * zlib * zlib_acknowledgement * zpl *Since v3.1.102.* * zpl_1 *Since v3.1.102.* * zpl_1_1 *Since v3.1.102.* * zpl_2 *Since v3.1.102.* * zpl_2_1 *Since v3.1.102.* License combinations Patterns each covering a combination of multiple licenses. Each of these patterns has the tag type:combo . * net_snmp *Since v3.6.0.* * perl * python_2 *Since v3.9.0.* License groups Patterns each covering either of multiple licenses. Each of these patterns has the tag type:group . * bsd * cc *Since v3.6.0.* * gnu * mit STRUCTURE The regexp patterns follows the DefHash specification, and more specifically the structure of Regexp::Pattern, defining access to one pattern per DefHash object, as `pat`. Additionally, (sub)patterns are available in plaintext form, as `pat.alt.*`. SUBJECT Each pattern targets one or more subjects, i.e. ways to directly or indirectly represent a license. Beware that not all pattern objects fully cover all subjects. trait Distinguishing trait or feature expressed in licensing strings, e.g. an advertising clause or granting "...or any later version." Coverage for this subject is currently rather weak. name Distinguishing name, e.g. usable in license grant. grant Text granting the license. license Text containing licensing terms. Texts containing both license grant and licensing terms (e.g. BSD- and MIT-style licensing) may be classified as either subject grant or subject license. This may change, as needs for distinction is better understood. SCOPE Each pattern can process material within some scope, i.e. a certain sample size of the full subject. As an example, <https://codesearch.debian.net/> use line-based processing, where patterns spanning multiple lines are not applicable. line Pattern typically found within a single line. Typically this means less than 70 characters within scope. sentence Pattern matching within a sentence. May span multiple lines, but not across multiple sentences. Typically this means no full-stop or colon within scope. paragraph Pattern matching distinguishing paragraph. May span multiple sentences, but not multiple paragraphs. Typically this means no newline within scope. section Pattern matching distinguishing section. May span multiple paragraphs, but not multiple sections. Typically this means blank line within scope. multisection Pattern may span multiple sections. OBSOLETE OBJECTS License objects obsoleted by improved coverage of other objects, and provided only as dummy objects. * python *Since v3.9.0.* Replaced by "psf_2" and "python_2". * wordnet_3 *Since v3.9.0.* Replaced by "wordnet". TAGS Pattern defhashes optionally includes tags, which may help in selecting multiple related patterns. Tags are hierarchical, with `:` as separator, and may be extended without notice. Therefore take care to permit sub-parts when tag-matching, e.g. using a regex like ` /\Asome:tag(?:\z|:)/ `. * family:bsd * family:cc * family:gpl * family:mit * family:zlib Pattern covers a license part of a family of licenses. * license:contains:grant:* License mentions a preferred form for granting the license. This implies that license is commonly granted by use of a different (typically far shorter) text. Fourth part (optional) is the key to corresponding license pattern, for a grant belonging to a different license (when omitted then a grant for same license is assumed). * license:contains:license:* License contains another license. Wildcard is the key to corresponding license pattern. * license:contains:name:* License mentions name of another license. * license:includes:license:* License references coverage of another license. Wildcard is the key to corresponding license pattern. * license:is:grant License is commonly granted by stating the whole license. * license:published:* License grant may include an "as published by..." reference. Third part is the key to corresponding trait pattern. * type:trait:publisher:* Pattern covers an "as published by ..." license grant phrase. Third part (optional) is the key to corresponding license pattern. * type:usage:*:* Pattern covers a specific usage of a license. Third part is the key of the corresponding non-usage-specific pattern. Fourth part is the key of the corresponding usage trait pattern. * type:combo Pattern covers a combination of multiple licenses. * type:group Pattern covers either of multiple licenses. * type:singleversion:* Pattern covers a specific version of a license. Third part is the key of the corresponding non-version-specific pattern. * type:trait Pattern covers a single trait occuring in licenses. * type:unversioned Pattern covers a license without versioning scheme. * type:versioned:decimal Pattern covers a license using decimal number versioning scheme. EXAMPLES Browse patterns The "official" way to browse patterns is using App::RegexpPatternUtils: show-regexp-pattern-module --page-result -- License Unfortunately, App::RegexpPatternUtils has a deep dependency tree. An alternative is to use Data::Printer and `less`: perl -CS -MRegexp::Pattern::License -MDDP -e 'p %Regexp::Pattern::License::RE, fulldump => 1, output => stdout' | less -RS AUTHOR Jonas Smedegaard `<dr@jones.dk>` COPYRIGHT AND LICENSE Copyright © 2016-2021 Jonas Smedegaard Copyright © 2017-2021 Purism SPC 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, 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 <https://www.gnu.org/licenses/>.