Method and device for file name identification and file cleaning

A method for file name identification, applicable to an electronic device, wherein the method comprises:

• determining a set of files to be processed which includes at least one file;
• obtaining a string corresponding to the name of each file included in the set of files to be processed;
• wherein, determining the set of files to be processed comprises:
• detecting whether the name of each folder in the electronic device conforms to a preset second string matching rule respectively, and judging whether the number of files in each folder in the electronic device is greater than or equal to a preset first threshold respectively;
• determining, as the set of files to be processed, all the files in the folders corresponding to all the detected folder names that conform to the second string matching rule, and all the files in the folder in which the number of the files is greater than or equal to a preset first threshold;
• determining a number N of types of regular expression templates in the regular expression template library that match strings corresponding to the names of files in the set of files to be processed;
• when N is less than or equal to a preset second threshold, performing a regular expression identification operation on the obtained string corresponding to the name of each file respectively, wherein the regular expression identification operation comprises:
• detecting whether a regular expression template matching the string is present in a preset regular expression template library which includes at least one regular expression template;
• if so, determining the detected regular expression template as a regular expression template of the file name corresponding to the string;
• and
• identifying a regular expression of the file name corresponding to the string according to the determined regular expression template.

A method for file cleaning, applicable to an electronic device, wherein the method comprises:

• determining a set of files to be processed which includes at least one file;
• obtaining a string corresponding to the name of each file included in the set of files to be processed;
• wherein, determining the set of files to be processed comprises:
• detecting whether the name of each folder in the electronic device conforms to a preset first string matching rule respectively, and judging whether the number of files in each folder in the electronic device is greater than or equal to a preset first threshold respectively;
• determining, as the set of files to be processed, all the files in the folder corresponding to the detected folder name that conforms to the first string matching rule, and all the files in the folder in which the number of the files is greater than or equal to a preset first threshold;
• determining a number N of types of regular expression templates in the regular expression template library that match strings corresponding to the names of files in the set of files to be processed;
• when N is less than or equal to a preset second threshold, performing a regular expression identification operation on the obtained string corresponding to the name of each file respectively, wherein the regular expression identification operation comprises:
• detecting whether a regular expression template matching the string is present in a preset regular expression template library which includes at least one regular expression template;
• if so, determining the detected regular expression template as a regular expression template of the file name corresponding to the string;
• identifying a regular expression of the file name corresponding to the string according to the determined regular expression template;
• matching the identified regular expression with a regular expression in a preset regular expression library for file cleaning;
• and
• deleting the file corresponding to the matched regular expression.

A method for file cleaning, applicable to an electronic device, wherein the method comprises:

• determining a set of files to be processed which includes at least one file;
• obtaining a string corresponding to the name of each file included in the set of files to be processed;
• wherein, determining the set of files to be processed comprises:
• detecting whether the name of each folder in the electronic device conforms to a preset second string matching rule respectively, and judging whether the number of files in each folder in the electronic device is greater than or equal to a preset first threshold respectively;
• determining, as the set of files to be processed, all the files in the folders corresponding to all the detected folder names that conform to the second string matching rule, and all the files in the folder in which the number of the files is greater than or equal to a preset first threshold;
• determining a number N of types of regular expression templates in the regular expression template library that match strings corresponding to the names of files in the set of files to be processed;
• when N is less than or equal to a preset second threshold, performing a regular expression identification operation on the obtained string corresponding to the name of each file respectively, wherein the regular expression identification operation comprises:
• detecting whether a regular expression template matching the string is present in a preset regular expression template library which includes at least one regular expression template;
• if so, determining the detected regular expression template as a regular expression template of the file name corresponding to the string;
• identifying a regular expression of the file name corresponding to the string according to the determined regular expression template;
• matching the identified regular expression with a regular expression in a preset regular expression library for file cleaning;
• and
• deleting the file corresponding to the matched regular expression.