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lz4cli : minor rewrite of lz4c legacy commands

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for clarity
This commit is contained in:
Yann Collet 2017-10-14 23:50:07 -07:00
parent 1aa997b594
commit dccf8826f1
1 changed files with 13 additions and 12 deletions
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25
programs/lz4cli.c
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@ -150,7 +150,7 @@ static int usage_advanced(const char* exeName)
DISPLAY( "Legacy arguments : \n");
DISPLAY( " -c0 : fast compression \n");
DISPLAY( " -c1 : high compression \n");
DISPLAY( " -hc : high compression \n");
DISPLAY( " -c2,-hc: very high compression \n");
DISPLAY( " -y : overwrite output without prompting \n");
}
return 0;
@ -205,14 +205,14 @@ static int usage_longhelp(const char* exeName)
DISPLAY( " generator | %s | consumer \n", exeName);
if (g_lz4c_legacy_commands) {
DISPLAY( "\n");
DISPLAY( "***** Warning *****\n");
DISPLAY( "***** Warning ***** \n");
DISPLAY( "Legacy arguments take precedence. Therefore : \n");
DISPLAY( "---------------------------------\n");
DISPLAY( " %s -hc filename\n", exeName);
DISPLAY( "means 'compress filename in high compression mode'\n");
DISPLAY( "It is not equivalent to :\n");
DISPLAY( " %s -h -c filename\n", exeName);
DISPLAY( "which would display help text and exit\n");
DISPLAY( "--------------------------------- \n");
DISPLAY( " %s -hc filename \n", exeName);
DISPLAY( "means 'compress filename in high compression mode' \n");
DISPLAY( "It is not equivalent to : \n");
DISPLAY( " %s -h -c filename \n", exeName);
DISPLAY( "which displays help text and exits \n");
}
return 0;
}
@ -368,10 +368,11 @@ int main(int argc, const char** argv)
if (g_lz4c_legacy_commands) {
/* Legacy commands (-c0, -c1, -hc, -y) */
if ((argument[0]=='c') && (argument[1]=='0')) { cLevel=0; argument++; continue; } /* -c0 (fast compression) */
if ((argument[0]=='c') && (argument[1]=='1')) { cLevel=9; argument++; continue; } /* -c1 (high compression) */
if ((argument[0]=='h') && (argument[1]=='c')) { cLevel=9; argument++; continue; } /* -hc (high compression) */
if (argument[0]=='y') { LZ4IO_setOverwrite(1); continue; } /* -y (answer 'yes' to overwrite permission) */
if (!strcmp(argument, "c0")) { cLevel=0; argument++; continue; } /* -c0 (fast compression) */
if (!strcmp(argument, "c1")) { cLevel=9; argument++; continue; } /* -c1 (high compression) */
if (!strcmp(argument, "c2")) { cLevel=12; argument++; continue; } /* -c2 (very high compression) */
if (!strcmp(argument, "hc")) { cLevel=12; argument++; continue; } /* -hc (very high compression) */
if (!strcmp(argument, "y")) { LZ4IO_setOverwrite(1); continue; } /* -y (answer 'yes' to overwrite permission) */
}
if ((*argument>='0') && (*argument<='9')) {