shithub: libtags

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add a very simple XM parser

--- a/README.md

+++ b/README.md

@@ -13,6 +13,8 @@

 | m4a            | yes             | no               | yes              |

 | opus           | yes             | no               | yes              |

 | WAV            | yes             | no               | yes              |

+| IT             | yes             | no               | ???              |

+| XM             | yes             | no               | ???              |

 | replay gain    | yes             | no               | ???              |

 | size           | tiny            | bloated          | more bloated     |

 | license        | MIT             | LGPL             | LGPL/MPL         |

--- a/mkfile

+++ b/mkfile

@@ -14,6 +14,7 @@

 	utf16.$O\

 	vorbis.$O\

 	wav.$O\

+	xm.$O\

 HFILES=\

 	/sys/include/tags.h\

--- a/tags.c

+++ b/tags.c

@@ -16,6 +16,7 @@

 extern int tagm4a(Tagctx *ctx);

 extern int tagopus(Tagctx *ctx);

 extern int tagwav(Tagctx *ctx);

+extern int tagxm(Tagctx *ctx);

 static const Getter g[] =

 {

@@ -27,6 +28,7 @@

 	{tagopus, Fopus},

 	{tagwav, Fwav},

 	{tagit, Fit},

+	{tagxm, Fxm},

 };

 void

--- a/tags.h

+++ b/tags.h

@@ -33,6 +33,7 @@

 	Fopus,

 	Fwav,

 	Fit,

+	Fxm,

 	Fmax,

 };

--- /dev/null

+++ b/xm.c

@@ -1,0 +1,15 @@

+#include "tagspriv.h"

+

+int

+tagxm(Tagctx *ctx)

+{

+	char d[17+20+1], *s;

+

+	if(ctx->read(ctx, d, 17+20) != 17+20 || memcmp(d, "Extended Module: ", 17) != 0)

+		return -1;

+	d[17+20] = 0;

+	for(s = d+17; *s == ' '; s++);

+	txtcb(ctx, Ttitle, "", s);

+

+	return 0;

+}