mirror of https://github.com/n05la3/cmdtypist
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31 lines
1.3 KiB
C
31 lines
1.3 KiB
C
#include"functions_for_cmd_typist.h"
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void select_lesson(int argc_cmd)
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{
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if(argc_cmd>0&&argc_cmd<4)//checking on the command line argument.
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{
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char ch;//
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printf("%s", "Enter command >>");
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while(scanf("%s",firstarg)!=1||(scanf("%d",&lesson_choice))!=1||lesson_choice<1||lesson_choice>15||strncmp(firstarg,"select",6)!=0)//Ensuring that "select"
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{ //is entered accurately and the selected value is within the correct range.
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if((strncmp(firstarg,"se",2)==0||strcmp(firstarg,"sel")==0||strcmp(firstarg,"sele")==0||strcmp(firstarg,"selec")==0)&&strcmp(firstarg,"select")!=0)
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//Making suggestion to help user prevent errors.
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fprintf(stderr, "\n%s\n", "Did you mean \"select usernumber\"");
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else if(ch!=1&&strcmp(firstarg,"select")==0)
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printf("%s", "Lesson number cannot contain symbols or alphas\n");
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else if((lesson_choice<1||lesson_choice>20)&&strcmp(firstarg,"select")==0)
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fprintf(stderr, "%s %d\n", "No lesson entry for ",lesson_choice);
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else printf("%s\n", "Command not found");
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while(ch=getchar()!='\n');//flushing off wrong string
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}
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}
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else
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{
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fprintf(stderr, "%s\n", "Invalid number of arguments, consult \"cmdtypist --help\" for more");
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exit(EXIT_FAILURE);
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}
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printf("\n");
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} |